Home / 99,367.85-137,129.40-54,046.82

Finding the Fourth Proportional to 99,367.85, 137,129.40 and 54,046.82

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Solution

The fourth proportional to 99,367.85, 137,129.40 and 54,046.82 is: 74,585.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,367.85 : 137,129.40 = 54,046.82 : x
  2. Step 2: Convert to fraction form
    99,367.85/137,129.40 = 54,046.82/x
  3. Step 3: Cross multiply
    99,367.85x = 137,129.40 × 54,046.82
  4. Step 4: Simplify right side
    99,367.85x = 7,411,408,341.33
  5. Step 5: Solve for x
    x = 7,411,408,341.33/99,367.85
  6. Step 6: Final answer
    x = 74,585.57

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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.