Home / 87,790.96-121,151.19-47,504.80

Finding the Fourth Proportional to 87,790.96, 121,151.19 and 47,504.80

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Solution

The fourth proportional to 87,790.96, 121,151.19 and 47,504.80 is: 65,556.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,790.96 : 121,151.19 = 47,504.80 : x
  2. Step 2: Convert to fraction form
    87,790.96/121,151.19 = 47,504.80/x
  3. Step 3: Cross multiply
    87,790.96x = 121,151.19 × 47,504.80
  4. Step 4: Simplify right side
    87,790.96x = 5,755,263,050.71
  5. Step 5: Solve for x
    x = 5,755,263,050.71/87,790.96
  6. Step 6: Final answer
    x = 65,556.44

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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.