Home / 66,489.02-91,763.38-38,200.18

Finding the Fourth Proportional to 66,489.02, 91,763.38 and 38,200.18

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Solution

The fourth proportional to 66,489.02, 91,763.38 and 38,200.18 is: 52,721.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,489.02 : 91,763.38 = 38,200.18 : x
  2. Step 2: Convert to fraction form
    66,489.02/91,763.38 = 38,200.18/x
  3. Step 3: Cross multiply
    66,489.02x = 91,763.38 × 38,200.18
  4. Step 4: Simplify right side
    66,489.02x = 3,505,377,633.41
  5. Step 5: Solve for x
    x = 3,505,377,633.41/66,489.02
  6. Step 6: Final answer
    x = 52,721.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.