Home / 98,127.20-135,407.82-55,685.73

Finding the Fourth Proportional to 98,127.20, 135,407.82 and 55,685.73

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Solution

The fourth proportional to 98,127.20, 135,407.82 and 55,685.73 is: 76,841.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,127.20 : 135,407.82 = 55,685.73 : x
  2. Step 2: Convert to fraction form
    98,127.20/135,407.82 = 55,685.73/x
  3. Step 3: Cross multiply
    98,127.20x = 135,407.82 × 55,685.73
  4. Step 4: Simplify right side
    98,127.20x = 7,540,283,025.98
  5. Step 5: Solve for x
    x = 7,540,283,025.98/98,127.20
  6. Step 6: Final answer
    x = 76,841.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.