Home / 84,747.60-127,121.40-22,418.10

Finding the Fourth Proportional to 84,747.60, 127,121.40 and 22,418.10

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Solution

The fourth proportional to 84,747.60, 127,121.40 and 22,418.10 is: 33,627.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,747.60 : 127,121.40 = 22,418.10 : x
  2. Step 2: Convert to fraction form
    84,747.60/127,121.40 = 22,418.10/x
  3. Step 3: Cross multiply
    84,747.60x = 127,121.40 × 22,418.10
  4. Step 4: Simplify right side
    84,747.60x = 2,849,820,257.34
  5. Step 5: Solve for x
    x = 2,849,820,257.34/84,747.60
  6. Step 6: Final answer
    x = 33,627.15

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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.