Home / 81,932.02-122,899.66-25,770.94

Finding the Fourth Proportional to 81,932.02, 122,899.66 and 25,770.94

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Solution

The fourth proportional to 81,932.02, 122,899.66 and 25,770.94 is: 38,656.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,932.02 : 122,899.66 = 25,770.94 : x
  2. Step 2: Convert to fraction form
    81,932.02/122,899.66 = 25,770.94/x
  3. Step 3: Cross multiply
    81,932.02x = 122,899.66 × 25,770.94
  4. Step 4: Simplify right side
    81,932.02x = 3,167,239,763.88
  5. Step 5: Solve for x
    x = 3,167,239,763.88/81,932.02
  6. Step 6: Final answer
    x = 38,656.92

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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.