Home / 81,146.94-121,720.44-33,761.16

Finding the Fourth Proportional to 81,146.94, 121,720.44 and 33,761.16

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Solution

The fourth proportional to 81,146.94, 121,720.44 and 33,761.16 is: 50,641.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,146.94 : 121,720.44 = 33,761.16 : x
  2. Step 2: Convert to fraction form
    81,146.94/121,720.44 = 33,761.16/x
  3. Step 3: Cross multiply
    81,146.94x = 121,720.44 × 33,761.16
  4. Step 4: Simplify right side
    81,146.94x = 4,109,423,250.11
  5. Step 5: Solve for x
    x = 4,109,423,250.11/81,146.94
  6. Step 6: Final answer
    x = 50,641.75

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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.