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Finding the Fourth Proportional to 83,624.80, 115,397.04 and 45,898.78

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Solution

The fourth proportional to 83,624.80, 115,397.04 and 45,898.78 is: 63,337.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,624.80 : 115,397.04 = 45,898.78 : x
  2. Step 2: Convert to fraction form
    83,624.80/115,397.04 = 45,898.78/x
  3. Step 3: Cross multiply
    83,624.80x = 115,397.04 × 45,898.78
  4. Step 4: Simplify right side
    83,624.80x = 5,296,583,351.61
  5. Step 5: Solve for x
    x = 5,296,583,351.61/83,624.80
  6. Step 6: Final answer
    x = 63,337.47

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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.