Home / 84,694.20-127,123.36-45,279.04

Finding the Fourth Proportional to 84,694.20, 127,123.36 and 45,279.04

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Solution

The fourth proportional to 84,694.20, 127,123.36 and 45,279.04 is: 67,962.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,694.20 : 127,123.36 = 45,279.04 : x
  2. Step 2: Convert to fraction form
    84,694.20/127,123.36 = 45,279.04/x
  3. Step 3: Cross multiply
    84,694.20x = 127,123.36 × 45,279.04
  4. Step 4: Simplify right side
    84,694.20x = 5,756,023,702.37
  5. Step 5: Solve for x
    x = 5,756,023,702.37/84,694.20
  6. Step 6: Final answer
    x = 67,962.43

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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.