Home / 45,144.25-67,716.23-13,554.18

Finding the Fourth Proportional to 45,144.25, 67,716.23 and 13,554.18

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Solution

The fourth proportional to 45,144.25, 67,716.23 and 13,554.18 is: 20,331.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,144.25 : 67,716.23 = 13,554.18 : x
  2. Step 2: Convert to fraction form
    45,144.25/67,716.23 = 13,554.18/x
  3. Step 3: Cross multiply
    45,144.25x = 67,716.23 × 13,554.18
  4. Step 4: Simplify right side
    45,144.25x = 917,837,902.57
  5. Step 5: Solve for x
    x = 917,837,902.57/45,144.25
  6. Step 6: Final answer
    x = 20,331.23

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.