Home / 99,910.34-137,874.64-54,587.35

Finding the Fourth Proportional to 99,910.34, 137,874.64 and 54,587.35

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Solution

The fourth proportional to 99,910.34, 137,874.64 and 54,587.35 is: 75,329.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,910.34 : 137,874.64 = 54,587.35 : x
  2. Step 2: Convert to fraction form
    99,910.34/137,874.64 = 54,587.35/x
  3. Step 3: Cross multiply
    99,910.34x = 137,874.64 × 54,587.35
  4. Step 4: Simplify right side
    99,910.34x = 7,526,210,592.49
  5. Step 5: Solve for x
    x = 7,526,210,592.49/99,910.34
  6. Step 6: Final answer
    x = 75,329.65

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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.