Home / 83,729.31-115,467.12-54,998.43

Finding the Fourth Proportional to 83,729.31, 115,467.12 and 54,998.43

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Solution

The fourth proportional to 83,729.31, 115,467.12 and 54,998.43 is: 75,845.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,729.31 : 115,467.12 = 54,998.43 : x
  2. Step 2: Convert to fraction form
    83,729.31/115,467.12 = 54,998.43/x
  3. Step 3: Cross multiply
    83,729.31x = 115,467.12 × 54,998.43
  4. Step 4: Simplify right side
    83,729.31x = 6,350,510,316.62
  5. Step 5: Solve for x
    x = 6,350,510,316.62/83,729.31
  6. Step 6: Final answer
    x = 75,845.73

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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.