Home / 42,098.18-63,157.66-12,515.88

Finding the Fourth Proportional to 42,098.18, 63,157.66 and 12,515.88

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Solution

The fourth proportional to 42,098.18, 63,157.66 and 12,515.88 is: 18,776.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,098.18 : 63,157.66 = 12,515.88 : x
  2. Step 2: Convert to fraction form
    42,098.18/63,157.66 = 12,515.88/x
  3. Step 3: Cross multiply
    42,098.18x = 63,157.66 × 12,515.88
  4. Step 4: Simplify right side
    42,098.18x = 790,473,693.64
  5. Step 5: Solve for x
    x = 790,473,693.64/42,098.18
  6. Step 6: Final answer
    x = 18,776.91

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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.