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Finding the Fourth Proportional to 84,307.59, 126,523.76 and 39,934.45

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Solution

The fourth proportional to 84,307.59, 126,523.76 and 39,934.45 is: 59,931.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,307.59 : 126,523.76 = 39,934.45 : x
  2. Step 2: Convert to fraction form
    84,307.59/126,523.76 = 39,934.45/x
  3. Step 3: Cross multiply
    84,307.59x = 126,523.76 × 39,934.45
  4. Step 4: Simplify right side
    84,307.59x = 5,052,656,767.53
  5. Step 5: Solve for x
    x = 5,052,656,767.53/84,307.59
  6. Step 6: Final answer
    x = 59,931.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.