Home / 87,999.39-121,445.60-50,272.83

Finding the Fourth Proportional to 87,999.39, 121,445.60 and 50,272.83

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Solution

The fourth proportional to 87,999.39, 121,445.60 and 50,272.83 is: 69,380.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,999.39 : 121,445.60 = 50,272.83 : x
  2. Step 2: Convert to fraction form
    87,999.39/121,445.60 = 50,272.83/x
  3. Step 3: Cross multiply
    87,999.39x = 121,445.60 × 50,272.83
  4. Step 4: Simplify right side
    87,999.39x = 6,105,413,751.68
  5. Step 5: Solve for x
    x = 6,105,413,751.68/87,999.39
  6. Step 6: Final answer
    x = 69,380.18

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1.5x scale

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.