Home / 63,306.39-87,380.10-39,418.95

Finding the Fourth Proportional to 63,306.39, 87,380.10 and 39,418.95

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Solution

The fourth proportional to 63,306.39, 87,380.10 and 39,418.95 is: 54,408.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,306.39 : 87,380.10 = 39,418.95 : x
  2. Step 2: Convert to fraction form
    63,306.39/87,380.10 = 39,418.95/x
  3. Step 3: Cross multiply
    63,306.39x = 87,380.10 × 39,418.95
  4. Step 4: Simplify right side
    63,306.39x = 3,444,431,792.90
  5. Step 5: Solve for x
    x = 3,444,431,792.90/63,306.39
  6. Step 6: Final answer
    x = 54,408.91

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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.