Home / 75,736.80-113,532.75-28,339.02

Finding the Fourth Proportional to 75,736.80, 113,532.75 and 28,339.02

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Solution

The fourth proportional to 75,736.80, 113,532.75 and 28,339.02 is: 42,481.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,736.80 : 113,532.75 = 28,339.02 : x
  2. Step 2: Convert to fraction form
    75,736.80/113,532.75 = 28,339.02/x
  3. Step 3: Cross multiply
    75,736.80x = 113,532.75 × 28,339.02
  4. Step 4: Simplify right side
    75,736.80x = 3,217,406,872.91
  5. Step 5: Solve for x
    x = 3,217,406,872.91/75,736.80
  6. Step 6: Final answer
    x = 42,481.42

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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.