Home / 87,829.60-121,221.25-50,103.84

Finding the Fourth Proportional to 87,829.60, 121,221.25 and 50,103.84

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Solution

The fourth proportional to 87,829.60, 121,221.25 and 50,103.84 is: 69,152.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,829.60 : 121,221.25 = 50,103.84 : x
  2. Step 2: Convert to fraction form
    87,829.60/121,221.25 = 50,103.84/x
  3. Step 3: Cross multiply
    87,829.60x = 121,221.25 × 50,103.84
  4. Step 4: Simplify right side
    87,829.60x = 6,073,650,114.60
  5. Step 5: Solve for x
    x = 6,073,650,114.60/87,829.60
  6. Step 6: Final answer
    x = 69,152.66

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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.