Home / 90,609.96-125,043.30-49,775.82

Finding the Fourth Proportional to 90,609.96, 125,043.30 and 49,775.82

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Solution

The fourth proportional to 90,609.96, 125,043.30 and 49,775.82 is: 68,691.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,609.96 : 125,043.30 = 49,775.82 : x
  2. Step 2: Convert to fraction form
    90,609.96/125,043.30 = 49,775.82/x
  3. Step 3: Cross multiply
    90,609.96x = 125,043.30 × 49,775.82
  4. Step 4: Simplify right side
    90,609.96x = 6,224,132,324.09
  5. Step 5: Solve for x
    x = 6,224,132,324.09/90,609.96
  6. Step 6: Final answer
    x = 68,691.48

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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.