Home / 87,001.28-130,481.50-49,066.95

Finding the Fourth Proportional to 87,001.28, 130,481.50 and 49,066.95

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Solution

The fourth proportional to 87,001.28, 130,481.50 and 49,066.95 is: 73,588.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,001.28 : 130,481.50 = 49,066.95 : x
  2. Step 2: Convert to fraction form
    87,001.28/130,481.50 = 49,066.95/x
  3. Step 3: Cross multiply
    87,001.28x = 130,481.50 × 49,066.95
  4. Step 4: Simplify right side
    87,001.28x = 6,402,329,236.43
  5. Step 5: Solve for x
    x = 6,402,329,236.43/87,001.28
  6. Step 6: Final answer
    x = 73,588.91

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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.