Home / 96,045.62-132,419.74-78,754.28

Finding the Fourth Proportional to 96,045.62, 132,419.74 and 78,754.28

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Solution

The fourth proportional to 96,045.62, 132,419.74 and 78,754.28 is: 108,579.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,045.62 : 132,419.74 = 78,754.28 : x
  2. Step 2: Convert to fraction form
    96,045.62/132,419.74 = 78,754.28/x
  3. Step 3: Cross multiply
    96,045.62x = 132,419.74 × 78,754.28
  4. Step 4: Simplify right side
    96,045.62x = 10,428,621,073.44
  5. Step 5: Solve for x
    x = 10,428,621,073.44/96,045.62
  6. Step 6: Final answer
    x = 108,579.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.