Home / 90,540.32-124,939.77-50,254.09

Finding the Fourth Proportional to 90,540.32, 124,939.77 and 50,254.09

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Solution

The fourth proportional to 90,540.32, 124,939.77 and 50,254.09 is: 69,347.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,540.32 : 124,939.77 = 50,254.09 : x
  2. Step 2: Convert to fraction form
    90,540.32/124,939.77 = 50,254.09/x
  3. Step 3: Cross multiply
    90,540.32x = 124,939.77 × 50,254.09
  4. Step 4: Simplify right side
    90,540.32x = 6,278,733,945.36
  5. Step 5: Solve for x
    x = 6,278,733,945.36/90,540.32
  6. Step 6: Final answer
    x = 69,347.38

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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.