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Finding the Fourth Proportional to 80,323.76, 120,526.95 and 38,251.55

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Solution

The fourth proportional to 80,323.76, 120,526.95 and 38,251.55 is: 57,397.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,323.76 : 120,526.95 = 38,251.55 : x
  2. Step 2: Convert to fraction form
    80,323.76/120,526.95 = 38,251.55/x
  3. Step 3: Cross multiply
    80,323.76x = 120,526.95 × 38,251.55
  4. Step 4: Simplify right side
    80,323.76x = 4,610,342,654.27
  5. Step 5: Solve for x
    x = 4,610,342,654.27/80,323.76
  6. Step 6: Final answer
    x = 57,397.00

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1.5x scale

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.