Home / 75,676.28-113,475-28,252.36

Finding the Fourth Proportional to 75,676.28, 113,475 and 28,252.36

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Solution

The fourth proportional to 75,676.28, 113,475 and 28,252.36 is: 42,363.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,676.28 : 113,475 = 28,252.36 : x
  2. Step 2: Convert to fraction form
    75,676.28/113,475 = 28,252.36/x
  3. Step 3: Cross multiply
    75,676.28x = 113,475 × 28,252.36
  4. Step 4: Simplify right side
    75,676.28x = 3,205,936,551
  5. Step 5: Solve for x
    x = 3,205,936,551/75,676.28
  6. Step 6: Final answer
    x = 42,363.82

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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.