Home / 81,069.66-111,871.43-45,261.92

Finding the Fourth Proportional to 81,069.66, 111,871.43 and 45,261.92

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Solution

The fourth proportional to 81,069.66, 111,871.43 and 45,261.92 is: 62,458.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,069.66 : 111,871.43 = 45,261.92 : x
  2. Step 2: Convert to fraction form
    81,069.66/111,871.43 = 45,261.92/x
  3. Step 3: Cross multiply
    81,069.66x = 111,871.43 × 45,261.92
  4. Step 4: Simplify right side
    81,069.66x = 5,063,515,938.05
  5. Step 5: Solve for x
    x = 5,063,515,938.05/81,069.66
  6. Step 6: Final answer
    x = 62,458.83

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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.