Home / 81,645.96-122,329.08-63,869.52

Finding the Fourth Proportional to 81,645.96, 122,329.08 and 63,869.52

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Solution

The fourth proportional to 81,645.96, 122,329.08 and 63,869.52 is: 95,694.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,645.96 : 122,329.08 = 63,869.52 : x
  2. Step 2: Convert to fraction form
    81,645.96/122,329.08 = 63,869.52/x
  3. Step 3: Cross multiply
    81,645.96x = 122,329.08 × 63,869.52
  4. Step 4: Simplify right side
    81,645.96x = 7,813,099,621.64
  5. Step 5: Solve for x
    x = 7,813,099,621.64/81,645.96
  6. Step 6: Final answer
    x = 95,694.87

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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.