Home / 80,965.23-121,449.03-36,561.03

Finding the Fourth Proportional to 80,965.23, 121,449.03 and 36,561.03

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Solution

The fourth proportional to 80,965.23, 121,449.03 and 36,561.03 is: 54,842.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,965.23 : 121,449.03 = 36,561.03 : x
  2. Step 2: Convert to fraction form
    80,965.23/121,449.03 = 36,561.03/x
  3. Step 3: Cross multiply
    80,965.23x = 121,449.03 × 36,561.03
  4. Step 4: Simplify right side
    80,965.23x = 4,440,301,629.30
  5. Step 5: Solve for x
    x = 4,440,301,629.30/80,965.23
  6. Step 6: Final answer
    x = 54,842.08

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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.