Home / 75,428.25-113,156.94-28,677.48

Finding the Fourth Proportional to 75,428.25, 113,156.94 and 28,677.48

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Solution

The fourth proportional to 75,428.25, 113,156.94 and 28,677.48 is: 43,021.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,428.25 : 113,156.94 = 28,677.48 : x
  2. Step 2: Convert to fraction form
    75,428.25/113,156.94 = 28,677.48/x
  3. Step 3: Cross multiply
    75,428.25x = 113,156.94 × 28,677.48
  4. Step 4: Simplify right side
    75,428.25x = 3,245,055,883.71
  5. Step 5: Solve for x
    x = 3,245,055,883.71/75,428.25
  6. Step 6: Final answer
    x = 43,021.76

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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.