Home / 81,242.46-121,863.51-22,086.72

Finding the Fourth Proportional to 81,242.46, 121,863.51 and 22,086.72

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Solution

The fourth proportional to 81,242.46, 121,863.51 and 22,086.72 is: 33,130.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,242.46 : 121,863.51 = 22,086.72 : x
  2. Step 2: Convert to fraction form
    81,242.46/121,863.51 = 22,086.72/x
  3. Step 3: Cross multiply
    81,242.46x = 121,863.51 × 22,086.72
  4. Step 4: Simplify right side
    81,242.46x = 2,691,565,223.59
  5. Step 5: Solve for x
    x = 2,691,565,223.59/81,242.46
  6. Step 6: Final answer
    x = 33,130.03

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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.