Home / 75,329.10-112,873.68-39,789.06

Finding the Fourth Proportional to 75,329.10, 112,873.68 and 39,789.06

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Solution

The fourth proportional to 75,329.10, 112,873.68 and 39,789.06 is: 59,620.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,329.10 : 112,873.68 = 39,789.06 : x
  2. Step 2: Convert to fraction form
    75,329.10/112,873.68 = 39,789.06/x
  3. Step 3: Cross multiply
    75,329.10x = 112,873.68 × 39,789.06
  4. Step 4: Simplify right side
    75,329.10x = 4,491,137,625.94
  5. Step 5: Solve for x
    x = 4,491,137,625.94/75,329.10
  6. Step 6: Final answer
    x = 59,620.22

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1.5x scale

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.