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Finding the Fourth Proportional to 66,739.80, 100,149.12 and 24,649.34

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Solution

The fourth proportional to 66,739.80, 100,149.12 and 24,649.34 is: 36,988.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,739.80 : 100,149.12 = 24,649.34 : x
  2. Step 2: Convert to fraction form
    66,739.80/100,149.12 = 24,649.34/x
  3. Step 3: Cross multiply
    66,739.80x = 100,149.12 × 24,649.34
  4. Step 4: Simplify right side
    66,739.80x = 2,468,609,709.58
  5. Step 5: Solve for x
    x = 2,468,609,709.58/66,739.80
  6. Step 6: Final answer
    x = 36,988.57

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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.