Home / 81,520.56-122,281-22,357.04

Finding the Fourth Proportional to 81,520.56, 122,281 and 22,357.04

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Solution

The fourth proportional to 81,520.56, 122,281 and 22,357.04 is: 33,535.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,520.56 : 122,281 = 22,357.04 : x
  2. Step 2: Convert to fraction form
    81,520.56/122,281 = 22,357.04/x
  3. Step 3: Cross multiply
    81,520.56x = 122,281 × 22,357.04
  4. Step 4: Simplify right side
    81,520.56x = 2,733,841,208.24
  5. Step 5: Solve for x
    x = 2,733,841,208.24/81,520.56
  6. Step 6: Final answer
    x = 33,535.60

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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.