Home / 42,427.62-63,633.09-40,319.88

Finding the Fourth Proportional to 42,427.62, 63,633.09 and 40,319.88

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Solution

The fourth proportional to 42,427.62, 63,633.09 and 40,319.88 is: 60,471.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,427.62 : 63,633.09 = 40,319.88 : x
  2. Step 2: Convert to fraction form
    42,427.62/63,633.09 = 40,319.88/x
  3. Step 3: Cross multiply
    42,427.62x = 63,633.09 × 40,319.88
  4. Step 4: Simplify right side
    42,427.62x = 2,565,678,552.83
  5. Step 5: Solve for x
    x = 2,565,678,552.83/42,427.62
  6. Step 6: Final answer
    x = 60,471.89

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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.