Home / 81,046.62-121,524.33-55,775.82

Finding the Fourth Proportional to 81,046.62, 121,524.33 and 55,775.82

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Solution

The fourth proportional to 81,046.62, 121,524.33 and 55,775.82 is: 83,632.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,046.62 : 121,524.33 = 55,775.82 : x
  2. Step 2: Convert to fraction form
    81,046.62/121,524.33 = 55,775.82/x
  3. Step 3: Cross multiply
    81,046.62x = 121,524.33 × 55,775.82
  4. Step 4: Simplify right side
    81,046.62x = 6,778,119,155.70
  5. Step 5: Solve for x
    x = 6,778,119,155.70/81,046.62
  6. Step 6: Final answer
    x = 83,632.35

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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.