Home / 90,874.46-125,455.96-63,733.88

Finding the Fourth Proportional to 90,874.46, 125,455.96 and 63,733.88

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Solution

The fourth proportional to 90,874.46, 125,455.96 and 63,733.88 is: 87,987.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,874.46 : 125,455.96 = 63,733.88 : x
  2. Step 2: Convert to fraction form
    90,874.46/125,455.96 = 63,733.88/x
  3. Step 3: Cross multiply
    90,874.46x = 125,455.96 × 63,733.88
  4. Step 4: Simplify right side
    90,874.46x = 7,995,795,099.92
  5. Step 5: Solve for x
    x = 7,995,795,099.92/90,874.46
  6. Step 6: Final answer
    x = 87,987.26

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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.