Home / 85,278.42-127,917.94-26,113.85

Finding the Fourth Proportional to 85,278.42, 127,917.94 and 26,113.85

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Solution

The fourth proportional to 85,278.42, 127,917.94 and 26,113.85 is: 39,170.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,278.42 : 127,917.94 = 26,113.85 : x
  2. Step 2: Convert to fraction form
    85,278.42/127,917.94 = 26,113.85/x
  3. Step 3: Cross multiply
    85,278.42x = 127,917.94 × 26,113.85
  4. Step 4: Simplify right side
    85,278.42x = 3,340,429,897.47
  5. Step 5: Solve for x
    x = 3,340,429,897.47/85,278.42
  6. Step 6: Final answer
    x = 39,170.87

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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.