Home / 63,945.06-88,299.90-40,112.70

Finding the Fourth Proportional to 63,945.06, 88,299.90 and 40,112.70

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Solution

The fourth proportional to 63,945.06, 88,299.90 and 40,112.70 is: 55,390.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,945.06 : 88,299.90 = 40,112.70 : x
  2. Step 2: Convert to fraction form
    63,945.06/88,299.90 = 40,112.70/x
  3. Step 3: Cross multiply
    63,945.06x = 88,299.90 × 40,112.70
  4. Step 4: Simplify right side
    63,945.06x = 3,541,947,398.73
  5. Step 5: Solve for x
    x = 3,541,947,398.73/63,945.06
  6. Step 6: Final answer
    x = 55,390.48

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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.