Home / 99,630.23-137,487.92-54,308.60

Finding the Fourth Proportional to 99,630.23, 137,487.92 and 54,308.60

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Solution

The fourth proportional to 99,630.23, 137,487.92 and 54,308.60 is: 74,944.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,630.23 : 137,487.92 = 54,308.60 : x
  2. Step 2: Convert to fraction form
    99,630.23/137,487.92 = 54,308.60/x
  3. Step 3: Cross multiply
    99,630.23x = 137,487.92 × 54,308.60
  4. Step 4: Simplify right side
    99,630.23x = 7,466,775,764.67
  5. Step 5: Solve for x
    x = 7,466,775,764.67/99,630.23
  6. Step 6: Final answer
    x = 74,944.89

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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.