Home / 45,171.75-67,755.02-13,581.18

Finding the Fourth Proportional to 45,171.75, 67,755.02 and 13,581.18

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Solution

The fourth proportional to 45,171.75, 67,755.02 and 13,581.18 is: 20,370.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,171.75 : 67,755.02 = 13,581.18 : x
  2. Step 2: Convert to fraction form
    45,171.75/67,755.02 = 13,581.18/x
  3. Step 3: Cross multiply
    45,171.75x = 67,755.02 × 13,581.18
  4. Step 4: Simplify right side
    45,171.75x = 920,193,054.62
  5. Step 5: Solve for x
    x = 920,193,054.62/45,171.75
  6. Step 6: Final answer
    x = 20,370.99

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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.