Home / 81,046.68-111,895.78-55,595.68

Finding the Fourth Proportional to 81,046.68, 111,895.78 and 55,595.68

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Solution

The fourth proportional to 81,046.68, 111,895.78 and 55,595.68 is: 76,757.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,046.68 : 111,895.78 = 55,595.68 : x
  2. Step 2: Convert to fraction form
    81,046.68/111,895.78 = 55,595.68/x
  3. Step 3: Cross multiply
    81,046.68x = 111,895.78 × 55,595.68
  4. Step 4: Simplify right side
    81,046.68x = 6,220,921,978.23
  5. Step 5: Solve for x
    x = 6,220,921,978.23/81,046.68
  6. Step 6: Final answer
    x = 76,757.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.