Home / 99,830.30-137,764.77-54,508.15

Finding the Fourth Proportional to 99,830.30, 137,764.77 and 54,508.15

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Solution

The fourth proportional to 99,830.30, 137,764.77 and 54,508.15 is: 75,220.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,830.30 : 137,764.77 = 54,508.15 : x
  2. Step 2: Convert to fraction form
    99,830.30/137,764.77 = 54,508.15/x
  3. Step 3: Cross multiply
    99,830.30x = 137,764.77 × 54,508.15
  4. Step 4: Simplify right side
    99,830.30x = 7,509,302,747.88
  5. Step 5: Solve for x
    x = 7,509,302,747.88/99,830.30
  6. Step 6: Final answer
    x = 75,220.68

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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.