Home / 90,932.09-125,490.20-50,645.87

Finding the Fourth Proportional to 90,932.09, 125,490.20 and 50,645.87

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Solution

The fourth proportional to 90,932.09, 125,490.20 and 50,645.87 is: 69,893.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,932.09 : 125,490.20 = 50,645.87 : x
  2. Step 2: Convert to fraction form
    90,932.09/125,490.20 = 50,645.87/x
  3. Step 3: Cross multiply
    90,932.09x = 125,490.20 × 50,645.87
  4. Step 4: Simplify right side
    90,932.09x = 6,355,560,355.47
  5. Step 5: Solve for x
    x = 6,355,560,355.47/90,932.09
  6. Step 6: Final answer
    x = 69,893.48

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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.