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Finding the Fourth Proportional to 84,014.55, 126,044.10 and 36,609.30

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Solution

The fourth proportional to 84,014.55, 126,044.10 and 36,609.30 is: 54,923.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,014.55 : 126,044.10 = 36,609.30 : x
  2. Step 2: Convert to fraction form
    84,014.55/126,044.10 = 36,609.30/x
  3. Step 3: Cross multiply
    84,014.55x = 126,044.10 × 36,609.30
  4. Step 4: Simplify right side
    84,014.55x = 4,614,386,270.13
  5. Step 5: Solve for x
    x = 4,614,386,270.13/84,014.55
  6. Step 6: Final answer
    x = 54,923.66

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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.