Home / 76,897.28-115,345.20-24,306.72

Finding the Fourth Proportional to 76,897.28, 115,345.20 and 24,306.72

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Solution

The fourth proportional to 76,897.28, 115,345.20 and 24,306.72 is: 36,459.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,897.28 : 115,345.20 = 24,306.72 : x
  2. Step 2: Convert to fraction form
    76,897.28/115,345.20 = 24,306.72/x
  3. Step 3: Cross multiply
    76,897.28x = 115,345.20 × 24,306.72
  4. Step 4: Simplify right side
    76,897.28x = 2,803,663,479.74
  5. Step 5: Solve for x
    x = 2,803,663,479.74/76,897.28
  6. Step 6: Final answer
    x = 36,459.85

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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.