Home / 85,049.22-127,575.81-40,680.66

Finding the Fourth Proportional to 85,049.22, 127,575.81 and 40,680.66

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Solution

The fourth proportional to 85,049.22, 127,575.81 and 40,680.66 is: 61,021.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,049.22 : 127,575.81 = 40,680.66 : x
  2. Step 2: Convert to fraction form
    85,049.22/127,575.81 = 40,680.66/x
  3. Step 3: Cross multiply
    85,049.22x = 127,575.81 × 40,680.66
  4. Step 4: Simplify right side
    85,049.22x = 5,189,868,150.83
  5. Step 5: Solve for x
    x = 5,189,868,150.83/85,049.22
  6. Step 6: Final answer
    x = 61,021.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.