Home / 75,408.28-113,112.29-19,248.38

Finding the Fourth Proportional to 75,408.28, 113,112.29 and 19,248.38

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Solution

The fourth proportional to 75,408.28, 113,112.29 and 19,248.38 is: 28,872.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,408.28 : 113,112.29 = 19,248.38 : x
  2. Step 2: Convert to fraction form
    75,408.28/113,112.29 = 19,248.38/x
  3. Step 3: Cross multiply
    75,408.28x = 113,112.29 × 19,248.38
  4. Step 4: Simplify right side
    75,408.28x = 2,177,227,775.03
  5. Step 5: Solve for x
    x = 2,177,227,775.03/75,408.28
  6. Step 6: Final answer
    x = 28,872.53

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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.