Home / 42,324.45-63,481.60-12,742.44

Finding the Fourth Proportional to 42,324.45, 63,481.60 and 12,742.44

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Solution

The fourth proportional to 42,324.45, 63,481.60 and 12,742.44 is: 19,112.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,324.45 : 63,481.60 = 12,742.44 : x
  2. Step 2: Convert to fraction form
    42,324.45/63,481.60 = 12,742.44/x
  3. Step 3: Cross multiply
    42,324.45x = 63,481.60 × 12,742.44
  4. Step 4: Simplify right side
    42,324.45x = 808,910,479.10
  5. Step 5: Solve for x
    x = 808,910,479.10/42,324.45
  6. Step 6: Final answer
    x = 19,112.13

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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.