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Finding the Fourth Proportional to 84,484, 126,721.08 and 22,154.48

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Solution

The fourth proportional to 84,484, 126,721.08 and 22,154.48 is: 33,230.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,484 : 126,721.08 = 22,154.48 : x
  2. Step 2: Convert to fraction form
    84,484/126,721.08 = 22,154.48/x
  3. Step 3: Cross multiply
    84,484x = 126,721.08 × 22,154.48
  4. Step 4: Simplify right side
    84,484x = 2,807,439,632.44
  5. Step 5: Solve for x
    x = 2,807,439,632.44/84,484
  6. Step 6: Final answer
    x = 33,230.43

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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.