Home / 87,766.22-121,117.02-47,479.89

Finding the Fourth Proportional to 87,766.22, 121,117.02 and 47,479.89

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Solution

The fourth proportional to 87,766.22, 121,117.02 and 47,479.89 is: 65,522.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,766.22 : 121,117.02 = 47,479.89 : x
  2. Step 2: Convert to fraction form
    87,766.22/121,117.02 = 47,479.89/x
  3. Step 3: Cross multiply
    87,766.22x = 121,117.02 × 47,479.89
  4. Step 4: Simplify right side
    87,766.22x = 5,750,622,786.73
  5. Step 5: Solve for x
    x = 5,750,622,786.73/87,766.22
  6. Step 6: Final answer
    x = 65,522.05

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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.