Home / 99,773.64-137,688.03-54,452.58

Finding the Fourth Proportional to 99,773.64, 137,688.03 and 54,452.58

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Solution

The fourth proportional to 99,773.64, 137,688.03 and 54,452.58 is: 75,144.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,773.64 : 137,688.03 = 54,452.58 : x
  2. Step 2: Convert to fraction form
    99,773.64/137,688.03 = 54,452.58/x
  3. Step 3: Cross multiply
    99,773.64x = 137,688.03 × 54,452.58
  4. Step 4: Simplify right side
    99,773.64x = 7,497,468,468.62
  5. Step 5: Solve for x
    x = 7,497,468,468.62/99,773.64
  6. Step 6: Final answer
    x = 75,144.78

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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.