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Finding the Fourth Proportional to 84,073.30, 126,077.16 and 36,702.88

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Solution

The fourth proportional to 84,073.30, 126,077.16 and 36,702.88 is: 55,040.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,073.30 : 126,077.16 = 36,702.88 : x
  2. Step 2: Convert to fraction form
    84,073.30/126,077.16 = 36,702.88/x
  3. Step 3: Cross multiply
    84,073.30x = 126,077.16 × 36,702.88
  4. Step 4: Simplify right side
    84,073.30x = 4,627,394,874.22
  5. Step 5: Solve for x
    x = 4,627,394,874.22/84,073.30
  6. Step 6: Final answer
    x = 55,040.01

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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.