Home / 90,919.40-135,999.27-63,899.85

Finding the Fourth Proportional to 90,919.40, 135,999.27 and 63,899.85

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Solution

The fourth proportional to 90,919.40, 135,999.27 and 63,899.85 is: 95,582.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,919.40 : 135,999.27 = 63,899.85 : x
  2. Step 2: Convert to fraction form
    90,919.40/135,999.27 = 63,899.85/x
  3. Step 3: Cross multiply
    90,919.40x = 135,999.27 × 63,899.85
  4. Step 4: Simplify right side
    90,919.40x = 8,690,332,953.11
  5. Step 5: Solve for x
    x = 8,690,332,953.11/90,919.40
  6. Step 6: Final answer
    x = 95,582.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.