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Finding the Fourth Proportional to 83,432.64, 125,159.40 and 27,278.40

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Solution

The fourth proportional to 83,432.64, 125,159.40 and 27,278.40 is: 40,921.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,432.64 : 125,159.40 = 27,278.40 : x
  2. Step 2: Convert to fraction form
    83,432.64/125,159.40 = 27,278.40/x
  3. Step 3: Cross multiply
    83,432.64x = 125,159.40 × 27,278.40
  4. Step 4: Simplify right side
    83,432.64x = 3,414,148,176.96
  5. Step 5: Solve for x
    x = 3,414,148,176.96/83,432.64
  6. Step 6: Final answer
    x = 40,921.01

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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.