Home / 86,616.38-129,929.49-24,291.74

Finding the Fourth Proportional to 86,616.38, 129,929.49 and 24,291.74

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Solution

The fourth proportional to 86,616.38, 129,929.49 and 24,291.74 is: 36,438.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,616.38 : 129,929.49 = 24,291.74 : x
  2. Step 2: Convert to fraction form
    86,616.38/129,929.49 = 24,291.74/x
  3. Step 3: Cross multiply
    86,616.38x = 129,929.49 × 24,291.74
  4. Step 4: Simplify right side
    86,616.38x = 3,156,212,739.77
  5. Step 5: Solve for x
    x = 3,156,212,739.77/86,616.38
  6. Step 6: Final answer
    x = 36,438.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.