Home / 87,932.60-121,346.79-47,647.46

Finding the Fourth Proportional to 87,932.60, 121,346.79 and 47,647.46

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Solution

The fourth proportional to 87,932.60, 121,346.79 and 47,647.46 is: 65,753.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,932.60 : 121,346.79 = 47,647.46 : x
  2. Step 2: Convert to fraction form
    87,932.60/121,346.79 = 47,647.46/x
  3. Step 3: Cross multiply
    87,932.60x = 121,346.79 × 47,647.46
  4. Step 4: Simplify right side
    87,932.60x = 5,781,865,715.92
  5. Step 5: Solve for x
    x = 5,781,865,715.92/87,932.60
  6. Step 6: Final answer
    x = 65,753.38

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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.