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Finding the Fourth Proportional to 83,207.88, 114,834.78 and 45,487.80

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Solution

The fourth proportional to 83,207.88, 114,834.78 and 45,487.80 is: 62,777.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,207.88 : 114,834.78 = 45,487.80 : x
  2. Step 2: Convert to fraction form
    83,207.88/114,834.78 = 45,487.80/x
  3. Step 3: Cross multiply
    83,207.88x = 114,834.78 × 45,487.80
  4. Step 4: Simplify right side
    83,207.88x = 5,223,581,505.68
  5. Step 5: Solve for x
    x = 5,223,581,505.68/83,207.88
  6. Step 6: Final answer
    x = 62,777.49

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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.