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Finding the Fourth Proportional to 84,404.46, 126,569.76 and 40,043.88

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Solution

The fourth proportional to 84,404.46, 126,569.76 and 40,043.88 is: 60,048.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,404.46 : 126,569.76 = 40,043.88 : x
  2. Step 2: Convert to fraction form
    84,404.46/126,569.76 = 40,043.88/x
  3. Step 3: Cross multiply
    84,404.46x = 126,569.76 × 40,043.88
  4. Step 4: Simplify right side
    84,404.46x = 5,068,344,281.07
  5. Step 5: Solve for x
    x = 5,068,344,281.07/84,404.46
  6. Step 6: Final answer
    x = 60,048.30

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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.