Home / 90,778.85-125,273.01-50,491.74

Finding the Fourth Proportional to 90,778.85, 125,273.01 and 50,491.74

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Solution

The fourth proportional to 90,778.85, 125,273.01 and 50,491.74 is: 69,677.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,778.85 : 125,273.01 = 50,491.74 : x
  2. Step 2: Convert to fraction form
    90,778.85/125,273.01 = 50,491.74/x
  3. Step 3: Cross multiply
    90,778.85x = 125,273.01 × 50,491.74
  4. Step 4: Simplify right side
    90,778.85x = 6,325,252,909.06
  5. Step 5: Solve for x
    x = 6,325,252,909.06/90,778.85
  6. Step 6: Final answer
    x = 69,677.61

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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.