Home / 90,748.68-125,236.21-49,914.52

Finding the Fourth Proportional to 90,748.68, 125,236.21 and 49,914.52

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Solution

The fourth proportional to 90,748.68, 125,236.21 and 49,914.52 is: 68,883.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,748.68 : 125,236.21 = 49,914.52 : x
  2. Step 2: Convert to fraction form
    90,748.68/125,236.21 = 49,914.52/x
  3. Step 3: Cross multiply
    90,748.68x = 125,236.21 × 49,914.52
  4. Step 4: Simplify right side
    90,748.68x = 6,251,105,495.69
  5. Step 5: Solve for x
    x = 6,251,105,495.69/90,748.68
  6. Step 6: Final answer
    x = 68,883.71

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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.