Home / 84,819.60-127,229.40-51,604.80

Finding the Fourth Proportional to 84,819.60, 127,229.40 and 51,604.80

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Solution

The fourth proportional to 84,819.60, 127,229.40 and 51,604.80 is: 77,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,819.60 : 127,229.40 = 51,604.80 : x
  2. Step 2: Convert to fraction form
    84,819.60/127,229.40 = 51,604.80/x
  3. Step 3: Cross multiply
    84,819.60x = 127,229.40 × 51,604.80
  4. Step 4: Simplify right side
    84,819.60x = 6,565,647,741.12
  5. Step 5: Solve for x
    x = 6,565,647,741.12/84,819.60
  6. Step 6: Final answer
    x = 77,407.20

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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.