Home / 84,819.80-127,288-29,415.80

Finding the Fourth Proportional to 84,819.80, 127,288 and 29,415.80

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Solution

The fourth proportional to 84,819.80, 127,288 and 29,415.80 is: 44,143.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,819.80 : 127,288 = 29,415.80 : x
  2. Step 2: Convert to fraction form
    84,819.80/127,288 = 29,415.80/x
  3. Step 3: Cross multiply
    84,819.80x = 127,288 × 29,415.80
  4. Step 4: Simplify right side
    84,819.80x = 3,744,278,350.40
  5. Step 5: Solve for x
    x = 3,744,278,350.40/84,819.80
  6. Step 6: Final answer
    x = 44,143.92

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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.