Home / 87,998.05-121,437.85-47,711.46

Finding the Fourth Proportional to 87,998.05, 121,437.85 and 47,711.46

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Solution

The fourth proportional to 87,998.05, 121,437.85 and 47,711.46 is: 65,842.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,998.05 : 121,437.85 = 47,711.46 : x
  2. Step 2: Convert to fraction form
    87,998.05/121,437.85 = 47,711.46/x
  3. Step 3: Cross multiply
    87,998.05x = 121,437.85 × 47,711.46
  4. Step 4: Simplify right side
    87,998.05x = 5,793,977,122.76
  5. Step 5: Solve for x
    x = 5,793,977,122.76/87,998.05
  6. Step 6: Final answer
    x = 65,842.11

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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.