Home / 69,082.12-103,623.17-19,162.21

Finding the Fourth Proportional to 69,082.12, 103,623.17 and 19,162.21

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Solution

The fourth proportional to 69,082.12, 103,623.17 and 19,162.21 is: 28,743.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,082.12 : 103,623.17 = 19,162.21 : x
  2. Step 2: Convert to fraction form
    69,082.12/103,623.17 = 19,162.21/x
  3. Step 3: Cross multiply
    69,082.12x = 103,623.17 × 19,162.21
  4. Step 4: Simplify right side
    69,082.12x = 1,985,649,295.56
  5. Step 5: Solve for x
    x = 1,985,649,295.56/69,082.12
  6. Step 6: Final answer
    x = 28,743.32

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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.