Home / 90,919.08-125,517.42-63,778.32

Finding the Fourth Proportional to 90,919.08, 125,517.42 and 63,778.32

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Solution

The fourth proportional to 90,919.08, 125,517.42 and 63,778.32 is: 88,048.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,919.08 : 125,517.42 = 63,778.32 : x
  2. Step 2: Convert to fraction form
    90,919.08/125,517.42 = 63,778.32/x
  3. Step 3: Cross multiply
    90,919.08x = 125,517.42 × 63,778.32
  4. Step 4: Simplify right side
    90,919.08x = 8,005,290,178.33
  5. Step 5: Solve for x
    x = 8,005,290,178.33/90,919.08
  6. Step 6: Final answer
    x = 88,048.52

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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.