Home / 84,819.20-127,145.10-47,397.20

Finding the Fourth Proportional to 84,819.20, 127,145.10 and 47,397.20

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Solution

The fourth proportional to 84,819.20, 127,145.10 and 47,397.20 is: 71,049.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,819.20 : 127,145.10 = 47,397.20 : x
  2. Step 2: Convert to fraction form
    84,819.20/127,145.10 = 47,397.20/x
  3. Step 3: Cross multiply
    84,819.20x = 127,145.10 × 47,397.20
  4. Step 4: Simplify right side
    84,819.20x = 6,026,321,733.72
  5. Step 5: Solve for x
    x = 6,026,321,733.72/84,819.20
  6. Step 6: Final answer
    x = 71,049.03

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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.