Home / 75,694.10-103,701.38-72,856.44

Finding the Fourth Proportional to 75,694.10, 103,701.38 and 72,856.44

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Solution

The fourth proportional to 75,694.10, 103,701.38 and 72,856.44 is: 99,813.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,694.10 : 103,701.38 = 72,856.44 : x
  2. Step 2: Convert to fraction form
    75,694.10/103,701.38 = 72,856.44/x
  3. Step 3: Cross multiply
    75,694.10x = 103,701.38 × 72,856.44
  4. Step 4: Simplify right side
    75,694.10x = 7,555,313,005.61
  5. Step 5: Solve for x
    x = 7,555,313,005.61/75,694.10
  6. Step 6: Final answer
    x = 99,813.77

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.