Home / 80,943.66-111,701.75-45,134.10

Finding the Fourth Proportional to 80,943.66, 111,701.75 and 45,134.10

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Solution

The fourth proportional to 80,943.66, 111,701.75 and 45,134.10 is: 62,284.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,943.66 : 111,701.75 = 45,134.10 : x
  2. Step 2: Convert to fraction form
    80,943.66/111,701.75 = 45,134.10/x
  3. Step 3: Cross multiply
    80,943.66x = 111,701.75 × 45,134.10
  4. Step 4: Simplify right side
    80,943.66x = 5,041,557,729.00
  5. Step 5: Solve for x
    x = 5,041,557,729.00/80,943.66
  6. Step 6: Final answer
    x = 62,284.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.