Home / 40,680.78-56,141.19-22,775.82

Finding the Fourth Proportional to 40,680.78, 56,141.19 and 22,775.82

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Solution

The fourth proportional to 40,680.78, 56,141.19 and 22,775.82 is: 31,431.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,680.78 : 56,141.19 = 22,775.82 : x
  2. Step 2: Convert to fraction form
    40,680.78/56,141.19 = 22,775.82/x
  3. Step 3: Cross multiply
    40,680.78x = 56,141.19 × 22,775.82
  4. Step 4: Simplify right side
    40,680.78x = 1,278,661,638.03
  5. Step 5: Solve for x
    x = 1,278,661,638.03/40,680.78
  6. Step 6: Final answer
    x = 31,431.59

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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.