Home / 99,823.80-137,753.22-54,500.95

Finding the Fourth Proportional to 99,823.80, 137,753.22 and 54,500.95

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Solution

The fourth proportional to 99,823.80, 137,753.22 and 54,500.95 is: 75,209.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,823.80 : 137,753.22 = 54,500.95 : x
  2. Step 2: Convert to fraction form
    99,823.80/137,753.22 = 54,500.95/x
  3. Step 3: Cross multiply
    99,823.80x = 137,753.22 × 54,500.95
  4. Step 4: Simplify right side
    99,823.80x = 7,507,680,666.79
  5. Step 5: Solve for x
    x = 7,507,680,666.79/99,823.80
  6. Step 6: Final answer
    x = 75,209.33

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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.