Home / 99,917.61-137,882.03-54,594.87

Finding the Fourth Proportional to 99,917.61, 137,882.03 and 54,594.87

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Solution

The fourth proportional to 99,917.61, 137,882.03 and 54,594.87 is: 75,338.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,917.61 : 137,882.03 = 54,594.87 : x
  2. Step 2: Convert to fraction form
    99,917.61/137,882.03 = 54,594.87/x
  3. Step 3: Cross multiply
    99,917.61x = 137,882.03 × 54,594.87
  4. Step 4: Simplify right side
    99,917.61x = 7,527,651,230.21
  5. Step 5: Solve for x
    x = 7,527,651,230.21/99,917.61
  6. Step 6: Final answer
    x = 75,338.58

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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.