Home / 76,511.92-114,761.40-26,579.20

Finding the Fourth Proportional to 76,511.92, 114,761.40 and 26,579.20

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Solution

The fourth proportional to 76,511.92, 114,761.40 and 26,579.20 is: 39,866.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,511.92 : 114,761.40 = 26,579.20 : x
  2. Step 2: Convert to fraction form
    76,511.92/114,761.40 = 26,579.20/x
  3. Step 3: Cross multiply
    76,511.92x = 114,761.40 × 26,579.20
  4. Step 4: Simplify right side
    76,511.92x = 3,050,266,202.88
  5. Step 5: Solve for x
    x = 3,050,266,202.88/76,511.92
  6. Step 6: Final answer
    x = 39,866.55

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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.