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Finding the Fourth Proportional to 84,401.20, 126,601.80 and 22,071.70

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Solution

The fourth proportional to 84,401.20, 126,601.80 and 22,071.70 is: 33,107.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,401.20 : 126,601.80 = 22,071.70 : x
  2. Step 2: Convert to fraction form
    84,401.20/126,601.80 = 22,071.70/x
  3. Step 3: Cross multiply
    84,401.20x = 126,601.80 × 22,071.70
  4. Step 4: Simplify right side
    84,401.20x = 2,794,316,949.06
  5. Step 5: Solve for x
    x = 2,794,316,949.06/84,401.20
  6. Step 6: Final answer
    x = 33,107.55

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1.5x scale

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.