Home / 45,085.18-67,640.74-13,497.62

Finding the Fourth Proportional to 45,085.18, 67,640.74 and 13,497.62

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Solution

The fourth proportional to 45,085.18, 67,640.74 and 13,497.62 is: 20,250.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,085.18 : 67,640.74 = 13,497.62 : x
  2. Step 2: Convert to fraction form
    45,085.18/67,640.74 = 13,497.62/x
  3. Step 3: Cross multiply
    45,085.18x = 67,640.74 × 13,497.62
  4. Step 4: Simplify right side
    45,085.18x = 912,989,005.04
  5. Step 5: Solve for x
    x = 912,989,005.04/45,085.18
  6. Step 6: Final answer
    x = 20,250.31

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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.