Home / 87,182.16-120,309.66-48,942.60

Finding the Fourth Proportional to 87,182.16, 120,309.66 and 48,942.60

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Solution

The fourth proportional to 87,182.16, 120,309.66 and 48,942.60 is: 67,539.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,182.16 : 120,309.66 = 48,942.60 : x
  2. Step 2: Convert to fraction form
    87,182.16/120,309.66 = 48,942.60/x
  3. Step 3: Cross multiply
    87,182.16x = 120,309.66 × 48,942.60
  4. Step 4: Simplify right side
    87,182.16x = 5,888,267,565.52
  5. Step 5: Solve for x
    x = 5,888,267,565.52/87,182.16
  6. Step 6: Final answer
    x = 67,539.82

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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.