Home / 81,484.11-122,209.56-22,315.23

Finding the Fourth Proportional to 81,484.11, 122,209.56 and 22,315.23

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Solution

The fourth proportional to 81,484.11, 122,209.56 and 22,315.23 is: 33,468.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,484.11 : 122,209.56 = 22,315.23 : x
  2. Step 2: Convert to fraction form
    81,484.11/122,209.56 = 22,315.23/x
  3. Step 3: Cross multiply
    81,484.11x = 122,209.56 × 22,315.23
  4. Step 4: Simplify right side
    81,484.11x = 2,727,134,439.60
  5. Step 5: Solve for x
    x = 2,727,134,439.60/81,484.11
  6. Step 6: Final answer
    x = 33,468.30

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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.