Home / 81,913.30-122,869.99-22,748.97

Finding the Fourth Proportional to 81,913.30, 122,869.99 and 22,748.97

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Solution

The fourth proportional to 81,913.30, 122,869.99 and 22,748.97 is: 34,123.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,913.30 : 122,869.99 = 22,748.97 : x
  2. Step 2: Convert to fraction form
    81,913.30/122,869.99 = 22,748.97/x
  3. Step 3: Cross multiply
    81,913.30x = 122,869.99 × 22,748.97
  4. Step 4: Simplify right side
    81,913.30x = 2,795,166,205.61
  5. Step 5: Solve for x
    x = 2,795,166,205.61/81,913.30
  6. Step 6: Final answer
    x = 34,123.47

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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.