Home / 66,470.26-91,737.63-38,176.15

Finding the Fourth Proportional to 66,470.26, 91,737.63 and 38,176.15

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Solution

The fourth proportional to 66,470.26, 91,737.63 and 38,176.15 is: 52,688.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,470.26 : 91,737.63 = 38,176.15 : x
  2. Step 2: Convert to fraction form
    66,470.26/91,737.63 = 38,176.15/x
  3. Step 3: Cross multiply
    66,470.26x = 91,737.63 × 38,176.15
  4. Step 4: Simplify right side
    66,470.26x = 3,502,189,523.52
  5. Step 5: Solve for x
    x = 3,502,189,523.52/66,470.26
  6. Step 6: Final answer
    x = 52,688.07

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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.