Home / 81,627.57-122,488.62-34,238.44

Finding the Fourth Proportional to 81,627.57, 122,488.62 and 34,238.44

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Solution

The fourth proportional to 81,627.57, 122,488.62 and 34,238.44 is: 51,377.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,627.57 : 122,488.62 = 34,238.44 : x
  2. Step 2: Convert to fraction form
    81,627.57/122,488.62 = 34,238.44/x
  3. Step 3: Cross multiply
    81,627.57x = 122,488.62 × 34,238.44
  4. Step 4: Simplify right side
    81,627.57x = 4,193,818,482.92
  5. Step 5: Solve for x
    x = 4,193,818,482.92/81,627.57
  6. Step 6: Final answer
    x = 51,377.48

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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.