Home / 81,294.16-121,928.92-22,134.49

Finding the Fourth Proportional to 81,294.16, 121,928.92 and 22,134.49

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Solution

The fourth proportional to 81,294.16, 121,928.92 and 22,134.49 is: 33,198.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,294.16 : 121,928.92 = 22,134.49 : x
  2. Step 2: Convert to fraction form
    81,294.16/121,928.92 = 22,134.49/x
  3. Step 3: Cross multiply
    81,294.16x = 121,928.92 × 22,134.49
  4. Step 4: Simplify right side
    81,294.16x = 2,698,834,460.45
  5. Step 5: Solve for x
    x = 2,698,834,460.45/81,294.16
  6. Step 6: Final answer
    x = 33,198.38

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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.