Home / 72,853.11-109,295.19-41,278.30

Finding the Fourth Proportional to 72,853.11, 109,295.19 and 41,278.30

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Solution

The fourth proportional to 72,853.11, 109,295.19 and 41,278.30 is: 61,926.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,853.11 : 109,295.19 = 41,278.30 : x
  2. Step 2: Convert to fraction form
    72,853.11/109,295.19 = 41,278.30/x
  3. Step 3: Cross multiply
    72,853.11x = 109,295.19 × 41,278.30
  4. Step 4: Simplify right side
    72,853.11x = 4,511,519,368.14
  5. Step 5: Solve for x
    x = 4,511,519,368.14/72,853.11
  6. Step 6: Final answer
    x = 61,926.24

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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.