Home / 81,847.94-122,773.42-25,686.79

Finding the Fourth Proportional to 81,847.94, 122,773.42 and 25,686.79

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Solution

The fourth proportional to 81,847.94, 122,773.42 and 25,686.79 is: 38,530.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,847.94 : 122,773.42 = 25,686.79 : x
  2. Step 2: Convert to fraction form
    81,847.94/122,773.42 = 25,686.79/x
  3. Step 3: Cross multiply
    81,847.94x = 122,773.42 × 25,686.79
  4. Step 4: Simplify right side
    81,847.94x = 3,153,654,782.30
  5. Step 5: Solve for x
    x = 3,153,654,782.30/81,847.94
  6. Step 6: Final answer
    x = 38,530.66

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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.