Home / 90,899.26-125,434.20-50,610.64

Finding the Fourth Proportional to 90,899.26, 125,434.20 and 50,610.64

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Solution

The fourth proportional to 90,899.26, 125,434.20 and 50,610.64 is: 69,838.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,899.26 : 125,434.20 = 50,610.64 : x
  2. Step 2: Convert to fraction form
    90,899.26/125,434.20 = 50,610.64/x
  3. Step 3: Cross multiply
    90,899.26x = 125,434.20 × 50,610.64
  4. Step 4: Simplify right side
    90,899.26x = 6,348,305,139.89
  5. Step 5: Solve for x
    x = 6,348,305,139.89/90,899.26
  6. Step 6: Final answer
    x = 69,838.91

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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.