Home / 75,436.56-104,172.48-48,641.76

Finding the Fourth Proportional to 75,436.56, 104,172.48 and 48,641.76

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Solution

The fourth proportional to 75,436.56, 104,172.48 and 48,641.76 is: 67,170.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,436.56 : 104,172.48 = 48,641.76 : x
  2. Step 2: Convert to fraction form
    75,436.56/104,172.48 = 48,641.76/x
  3. Step 3: Cross multiply
    75,436.56x = 104,172.48 × 48,641.76
  4. Step 4: Simplify right side
    75,436.56x = 5,067,132,770.76
  5. Step 5: Solve for x
    x = 5,067,132,770.76/75,436.56
  6. Step 6: Final answer
    x = 67,170.78

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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.