Home / 66,657.43-91,997.27-38,357.65

Finding the Fourth Proportional to 66,657.43, 91,997.27 and 38,357.65

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Solution

The fourth proportional to 66,657.43, 91,997.27 and 38,357.65 is: 52,939.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,657.43 : 91,997.27 = 38,357.65 : x
  2. Step 2: Convert to fraction form
    66,657.43/91,997.27 = 38,357.65/x
  3. Step 3: Cross multiply
    66,657.43x = 91,997.27 × 38,357.65
  4. Step 4: Simplify right side
    66,657.43x = 3,528,799,083.62
  5. Step 5: Solve for x
    x = 3,528,799,083.62/66,657.43
  6. Step 6: Final answer
    x = 52,939.32

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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.