Home / 83,717.64-115,560.72-55,432.44

Finding the Fourth Proportional to 83,717.64, 115,560.72 and 55,432.44

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Solution

The fourth proportional to 83,717.64, 115,560.72 and 55,432.44 is: 76,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,717.64 : 115,560.72 = 55,432.44 : x
  2. Step 2: Convert to fraction form
    83,717.64/115,560.72 = 55,432.44/x
  3. Step 3: Cross multiply
    83,717.64x = 115,560.72 × 55,432.44
  4. Step 4: Simplify right side
    83,717.64x = 6,405,812,677.76
  5. Step 5: Solve for x
    x = 6,405,812,677.76/83,717.64
  6. Step 6: Final answer
    x = 76,516.88

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1.5x scale

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.