Home / 72,548.03-100,161.29-49,878.56

Finding the Fourth Proportional to 72,548.03, 100,161.29 and 49,878.56

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Solution

The fourth proportional to 72,548.03, 100,161.29 and 49,878.56 is: 68,863.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,548.03 : 100,161.29 = 49,878.56 : x
  2. Step 2: Convert to fraction form
    72,548.03/100,161.29 = 49,878.56/x
  3. Step 3: Cross multiply
    72,548.03x = 100,161.29 × 49,878.56
  4. Step 4: Simplify right side
    72,548.03x = 4,995,900,912.94
  5. Step 5: Solve for x
    x = 4,995,900,912.94/72,548.03
  6. Step 6: Final answer
    x = 68,863.36

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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.