Home / 87,869.76-121,241.28-52,070.88

Finding the Fourth Proportional to 87,869.76, 121,241.28 and 52,070.88

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Solution

The fourth proportional to 87,869.76, 121,241.28 and 52,070.88 is: 71,846.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,869.76 : 121,241.28 = 52,070.88 : x
  2. Step 2: Convert to fraction form
    87,869.76/121,241.28 = 52,070.88/x
  3. Step 3: Cross multiply
    87,869.76x = 121,241.28 × 52,070.88
  4. Step 4: Simplify right side
    87,869.76x = 6,313,140,141.93
  5. Step 5: Solve for x
    x = 6,313,140,141.93/87,869.76
  6. Step 6: Final answer
    x = 71,846.56

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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.