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Finding the Fourth Proportional to 63,459.80, 95,158 and 20,759.66

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Solution

The fourth proportional to 63,459.80, 95,158 and 20,759.66 is: 31,129.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,459.80 : 95,158 = 20,759.66 : x
  2. Step 2: Convert to fraction form
    63,459.80/95,158 = 20,759.66/x
  3. Step 3: Cross multiply
    63,459.80x = 95,158 × 20,759.66
  4. Step 4: Simplify right side
    63,459.80x = 1,975,447,250.49
  5. Step 5: Solve for x
    x = 1,975,447,250.49/63,459.80
  6. Step 6: Final answer
    x = 31,129.11

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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.