Home / 90,615.11-125,044.58-50,331.33

Finding the Fourth Proportional to 90,615.11, 125,044.58 and 50,331.33

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Solution

The fourth proportional to 90,615.11, 125,044.58 and 50,331.33 is: 69,454.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,615.11 : 125,044.58 = 50,331.33 : x
  2. Step 2: Convert to fraction form
    90,615.11/125,044.58 = 50,331.33/x
  3. Step 3: Cross multiply
    90,615.11x = 125,044.58 × 50,331.33
  4. Step 4: Simplify right side
    90,615.11x = 6,293,660,146.52
  5. Step 5: Solve for x
    x = 6,293,660,146.52/90,615.11
  6. Step 6: Final answer
    x = 69,454.87

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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.