Home / 90,515.85-124,917.72-50,229.70

Finding the Fourth Proportional to 90,515.85, 124,917.72 and 50,229.70

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Solution

The fourth proportional to 90,515.85, 124,917.72 and 50,229.70 is: 69,320.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,515.85 : 124,917.72 = 50,229.70 : x
  2. Step 2: Convert to fraction form
    90,515.85/124,917.72 = 50,229.70/x
  3. Step 3: Cross multiply
    90,515.85x = 124,917.72 × 50,229.70
  4. Step 4: Simplify right side
    90,515.85x = 6,274,579,600.28
  5. Step 5: Solve for x
    x = 6,274,579,600.28/90,515.85
  6. Step 6: Final answer
    x = 69,320.23

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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.