Home / 81,107.02-121,694.25-33,732.49

Finding the Fourth Proportional to 81,107.02, 121,694.25 and 33,732.49

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Solution

The fourth proportional to 81,107.02, 121,694.25 and 33,732.49 is: 50,612.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,107.02 : 121,694.25 = 33,732.49 : x
  2. Step 2: Convert to fraction form
    81,107.02/121,694.25 = 33,732.49/x
  3. Step 3: Cross multiply
    81,107.02x = 121,694.25 × 33,732.49
  4. Step 4: Simplify right side
    81,107.02x = 4,105,050,071.18
  5. Step 5: Solve for x
    x = 4,105,050,071.18/81,107.02
  6. Step 6: Final answer
    x = 50,612.76

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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.