Home / 87,849.20-121,230.44-47,562.64

Finding the Fourth Proportional to 87,849.20, 121,230.44 and 47,562.64

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Solution

The fourth proportional to 87,849.20, 121,230.44 and 47,562.64 is: 65,635.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,849.20 : 121,230.44 = 47,562.64 : x
  2. Step 2: Convert to fraction form
    87,849.20/121,230.44 = 47,562.64/x
  3. Step 3: Cross multiply
    87,849.20x = 121,230.44 × 47,562.64
  4. Step 4: Simplify right side
    87,849.20x = 5,766,039,774.76
  5. Step 5: Solve for x
    x = 5,766,039,774.76/87,849.20
  6. Step 6: Final answer
    x = 65,635.65

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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.