Home / 80,993.69-121,376.37-38,253.56

Finding the Fourth Proportional to 80,993.69, 121,376.37 and 38,253.56

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Solution

The fourth proportional to 80,993.69, 121,376.37 and 38,253.56 is: 57,326.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,993.69 : 121,376.37 = 38,253.56 : x
  2. Step 2: Convert to fraction form
    80,993.69/121,376.37 = 38,253.56/x
  3. Step 3: Cross multiply
    80,993.69x = 121,376.37 × 38,253.56
  4. Step 4: Simplify right side
    80,993.69x = 4,643,078,061.11
  5. Step 5: Solve for x
    x = 4,643,078,061.11/80,993.69
  6. Step 6: Final answer
    x = 57,326.42

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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.