Home / 75,127.29-112,524.79-51,378.54

Finding the Fourth Proportional to 75,127.29, 112,524.79 and 51,378.54

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Solution

The fourth proportional to 75,127.29, 112,524.79 and 51,378.54 is: 76,954.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,127.29 : 112,524.79 = 51,378.54 : x
  2. Step 2: Convert to fraction form
    75,127.29/112,524.79 = 51,378.54/x
  3. Step 3: Cross multiply
    75,127.29x = 112,524.79 × 51,378.54
  4. Step 4: Simplify right side
    75,127.29x = 5,781,359,424.01
  5. Step 5: Solve for x
    x = 5,781,359,424.01/75,127.29
  6. Step 6: Final answer
    x = 76,954.19

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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.