Home / 81,160.11-121,649.72-33,748.65

Finding the Fourth Proportional to 81,160.11, 121,649.72 and 33,748.65

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Solution

The fourth proportional to 81,160.11, 121,649.72 and 33,748.65 is: 50,585.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,160.11 : 121,649.72 = 33,748.65 : x
  2. Step 2: Convert to fraction form
    81,160.11/121,649.72 = 33,748.65/x
  3. Step 3: Cross multiply
    81,160.11x = 121,649.72 × 33,748.65
  4. Step 4: Simplify right side
    81,160.11x = 4,105,513,654.13
  5. Step 5: Solve for x
    x = 4,105,513,654.13/81,160.11
  6. Step 6: Final answer
    x = 50,585.36

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1.5x scale

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.