Home / 90,764.38-125,252.67-49,370.32

Finding the Fourth Proportional to 90,764.38, 125,252.67 and 49,370.32

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Solution

The fourth proportional to 90,764.38, 125,252.67 and 49,370.32 is: 68,129.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,764.38 : 125,252.67 = 49,370.32 : x
  2. Step 2: Convert to fraction form
    90,764.38/125,252.67 = 49,370.32/x
  3. Step 3: Cross multiply
    90,764.38x = 125,252.67 × 49,370.32
  4. Step 4: Simplify right side
    90,764.38x = 6,183,764,398.75
  5. Step 5: Solve for x
    x = 6,183,764,398.75/90,764.38
  6. Step 6: Final answer
    x = 68,129.86

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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.