Home / 82,775.28-123,923.44-74,228.96

Finding the Fourth Proportional to 82,775.28, 123,923.44 and 74,228.96

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Solution

The fourth proportional to 82,775.28, 123,923.44 and 74,228.96 is: 111,128.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,775.28 : 123,923.44 = 74,228.96 : x
  2. Step 2: Convert to fraction form
    82,775.28/123,923.44 = 74,228.96/x
  3. Step 3: Cross multiply
    82,775.28x = 123,923.44 × 74,228.96
  4. Step 4: Simplify right side
    82,775.28x = 9,198,708,070.82
  5. Step 5: Solve for x
    x = 9,198,708,070.82/82,775.28
  6. Step 6: Final answer
    x = 111,128.69

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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.