Home / 76,773.78-115,194.14-26,889.66

Finding the Fourth Proportional to 76,773.78, 115,194.14 and 26,889.66

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Solution

The fourth proportional to 76,773.78, 115,194.14 and 26,889.66 is: 40,346.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,773.78 : 115,194.14 = 26,889.66 : x
  2. Step 2: Convert to fraction form
    76,773.78/115,194.14 = 26,889.66/x
  3. Step 3: Cross multiply
    76,773.78x = 115,194.14 × 26,889.66
  4. Step 4: Simplify right side
    76,773.78x = 3,097,531,124.14
  5. Step 5: Solve for x
    x = 3,097,531,124.14/76,773.78
  6. Step 6: Final answer
    x = 40,346.21

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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.