Home / 67,691.37-93,438.62-39,397.06

Finding the Fourth Proportional to 67,691.37, 93,438.62 and 39,397.06

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Solution

The fourth proportional to 67,691.37, 93,438.62 and 39,397.06 is: 54,382.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,691.37 : 93,438.62 = 39,397.06 : x
  2. Step 2: Convert to fraction form
    67,691.37/93,438.62 = 39,397.06/x
  3. Step 3: Cross multiply
    67,691.37x = 93,438.62 × 39,397.06
  4. Step 4: Simplify right side
    67,691.37x = 3,681,206,918.46
  5. Step 5: Solve for x
    x = 3,681,206,918.46/67,691.37
  6. Step 6: Final answer
    x = 54,382.22

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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.