Home / 48,945.78-73,427.67-20,865.78

Finding the Fourth Proportional to 48,945.78, 73,427.67 and 20,865.78

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Solution

The fourth proportional to 48,945.78, 73,427.67 and 20,865.78 is: 31,302.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,945.78 : 73,427.67 = 20,865.78 : x
  2. Step 2: Convert to fraction form
    48,945.78/73,427.67 = 20,865.78/x
  3. Step 3: Cross multiply
    48,945.78x = 73,427.67 × 20,865.78
  4. Step 4: Simplify right side
    48,945.78x = 1,532,125,608.13
  5. Step 5: Solve for x
    x = 1,532,125,608.13/48,945.78
  6. Step 6: Final answer
    x = 31,302.51

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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.