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Finding the Fourth Proportional to 71,895.36, 107,843.04 and 19,310.16

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Solution

The fourth proportional to 71,895.36, 107,843.04 and 19,310.16 is: 28,965.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,895.36 : 107,843.04 = 19,310.16 : x
  2. Step 2: Convert to fraction form
    71,895.36/107,843.04 = 19,310.16/x
  3. Step 3: Cross multiply
    71,895.36x = 107,843.04 × 19,310.16
  4. Step 4: Simplify right side
    71,895.36x = 2,082,466,357.29
  5. Step 5: Solve for x
    x = 2,082,466,357.29/71,895.36
  6. Step 6: Final answer
    x = 28,965.24

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Similar ratio
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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.