Home / 76,521.46-114,790.92-20,363.88

Finding the Fourth Proportional to 76,521.46, 114,790.92 and 20,363.88

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Solution

The fourth proportional to 76,521.46, 114,790.92 and 20,363.88 is: 30,548.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,521.46 : 114,790.92 = 20,363.88 : x
  2. Step 2: Convert to fraction form
    76,521.46/114,790.92 = 20,363.88/x
  3. Step 3: Cross multiply
    76,521.46x = 114,790.92 × 20,363.88
  4. Step 4: Simplify right side
    76,521.46x = 2,337,588,519.97
  5. Step 5: Solve for x
    x = 2,337,588,519.97/76,521.46
  6. Step 6: Final answer
    x = 30,548.14

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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.