Home / 83,397.72-115,087.21-47,581.95

Finding the Fourth Proportional to 83,397.72, 115,087.21 and 47,581.95

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Solution

The fourth proportional to 83,397.72, 115,087.21 and 47,581.95 is: 65,662.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,397.72 : 115,087.21 = 47,581.95 : x
  2. Step 2: Convert to fraction form
    83,397.72/115,087.21 = 47,581.95/x
  3. Step 3: Cross multiply
    83,397.72x = 115,087.21 × 47,581.95
  4. Step 4: Simplify right side
    83,397.72x = 5,476,073,752.90
  5. Step 5: Solve for x
    x = 5,476,073,752.90/83,397.72
  6. Step 6: Final answer
    x = 65,662.15

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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.