Home / 80,836.38-121,268.16-36,462.06

Finding the Fourth Proportional to 80,836.38, 121,268.16 and 36,462.06

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Solution

The fourth proportional to 80,836.38, 121,268.16 and 36,462.06 is: 54,699.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,836.38 : 121,268.16 = 36,462.06 : x
  2. Step 2: Convert to fraction form
    80,836.38/121,268.16 = 36,462.06/x
  3. Step 3: Cross multiply
    80,836.38x = 121,268.16 × 36,462.06
  4. Step 4: Simplify right side
    80,836.38x = 4,421,686,926.01
  5. Step 5: Solve for x
    x = 4,421,686,926.01/80,836.38
  6. Step 6: Final answer
    x = 54,699.22

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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.