Home / 83,731.32-115,469.88-55,000.44

Finding the Fourth Proportional to 83,731.32, 115,469.88 and 55,000.44

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Solution

The fourth proportional to 83,731.32, 115,469.88 and 55,000.44 is: 75,848.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,731.32 : 115,469.88 = 55,000.44 : x
  2. Step 2: Convert to fraction form
    83,731.32/115,469.88 = 55,000.44/x
  3. Step 3: Cross multiply
    83,731.32x = 115,469.88 × 55,000.44
  4. Step 4: Simplify right side
    83,731.32x = 6,350,894,206.75
  5. Step 5: Solve for x
    x = 6,350,894,206.75/83,731.32
  6. Step 6: Final answer
    x = 75,848.49

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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.