Home / 71,799.58-99,082.38-39,968.44

Finding the Fourth Proportional to 71,799.58, 99,082.38 and 39,968.44

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Solution

The fourth proportional to 71,799.58, 99,082.38 and 39,968.44 is: 55,155.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,799.58 : 99,082.38 = 39,968.44 : x
  2. Step 2: Convert to fraction form
    71,799.58/99,082.38 = 39,968.44/x
  3. Step 3: Cross multiply
    71,799.58x = 99,082.38 × 39,968.44
  4. Step 4: Simplify right side
    71,799.58x = 3,960,168,160.09
  5. Step 5: Solve for x
    x = 3,960,168,160.09/71,799.58
  6. Step 6: Final answer
    x = 55,155.87

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1.5x scale

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.