Home / 80,965.22-121,449.06-36,561.02

Finding the Fourth Proportional to 80,965.22, 121,449.06 and 36,561.02

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Solution

The fourth proportional to 80,965.22, 121,449.06 and 36,561.02 is: 54,842.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,965.22 : 121,449.06 = 36,561.02 : x
  2. Step 2: Convert to fraction form
    80,965.22/121,449.06 = 36,561.02/x
  3. Step 3: Cross multiply
    80,965.22x = 121,449.06 × 36,561.02
  4. Step 4: Simplify right side
    80,965.22x = 4,440,300,904.40
  5. Step 5: Solve for x
    x = 4,440,300,904.40/80,965.22
  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.