Home / 78,511.31-108,365.46-44,540.05

Finding the Fourth Proportional to 78,511.31, 108,365.46 and 44,540.05

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Solution

The fourth proportional to 78,511.31, 108,365.46 and 44,540.05 is: 61,476.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,511.31 : 108,365.46 = 44,540.05 : x
  2. Step 2: Convert to fraction form
    78,511.31/108,365.46 = 44,540.05/x
  3. Step 3: Cross multiply
    78,511.31x = 108,365.46 × 44,540.05
  4. Step 4: Simplify right side
    78,511.31x = 4,826,603,006.67
  5. Step 5: Solve for x
    x = 4,826,603,006.67/78,511.31
  6. Step 6: Final answer
    x = 61,476.53

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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.