Home / 87,766.12-121,117.08-47,479.92

Finding the Fourth Proportional to 87,766.12, 121,117.08 and 47,479.92

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Solution

The fourth proportional to 87,766.12, 121,117.08 and 47,479.92 is: 65,522.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,766.12 : 121,117.08 = 47,479.92 : x
  2. Step 2: Convert to fraction form
    87,766.12/121,117.08 = 47,479.92/x
  3. Step 3: Cross multiply
    87,766.12x = 121,117.08 × 47,479.92
  4. Step 4: Simplify right side
    87,766.12x = 5,750,629,269.03
  5. Step 5: Solve for x
    x = 5,750,629,269.03/87,766.12
  6. Step 6: Final answer
    x = 65,522.20

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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.