Home / 71,387.17-98,488.23-42,707.66

Finding the Fourth Proportional to 71,387.17, 98,488.23 and 42,707.66

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Solution

The fourth proportional to 71,387.17, 98,488.23 and 42,707.66 is: 58,920.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,387.17 : 98,488.23 = 42,707.66 : x
  2. Step 2: Convert to fraction form
    71,387.17/98,488.23 = 42,707.66/x
  3. Step 3: Cross multiply
    71,387.17x = 98,488.23 × 42,707.66
  4. Step 4: Simplify right side
    71,387.17x = 4,206,201,188.25
  5. Step 5: Solve for x
    x = 4,206,201,188.25/71,387.17
  6. Step 6: Final answer
    x = 58,920.97

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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.