Home / 71,799.99-99,082.26-39,968.22

Finding the Fourth Proportional to 71,799.99, 99,082.26 and 39,968.22

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Solution

The fourth proportional to 71,799.99, 99,082.26 and 39,968.22 is: 55,155.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,799.99 : 99,082.26 = 39,968.22 : x
  2. Step 2: Convert to fraction form
    71,799.99/99,082.26 = 39,968.22/x
  3. Step 3: Cross multiply
    71,799.99x = 99,082.26 × 39,968.22
  4. Step 4: Simplify right side
    71,799.99x = 3,960,141,565.78
  5. Step 5: Solve for x
    x = 3,960,141,565.78/71,799.99
  6. Step 6: Final answer
    x = 55,155.18

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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.