Home / 42,542.46-63,817.20-12,960.54

Finding the Fourth Proportional to 42,542.46, 63,817.20 and 12,960.54

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Solution

The fourth proportional to 42,542.46, 63,817.20 and 12,960.54 is: 19,441.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,542.46 : 63,817.20 = 12,960.54 : x
  2. Step 2: Convert to fraction form
    42,542.46/63,817.20 = 12,960.54/x
  3. Step 3: Cross multiply
    42,542.46x = 63,817.20 × 12,960.54
  4. Step 4: Simplify right side
    42,542.46x = 827,105,373.29
  5. Step 5: Solve for x
    x = 827,105,373.29/42,542.46
  6. Step 6: Final answer
    x = 19,441.88

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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.