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Finding the Fourth Proportional to 72,634.46, 108,995.44 and 28,282.10

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Solution

The fourth proportional to 72,634.46, 108,995.44 and 28,282.10 is: 42,440.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,634.46 : 108,995.44 = 28,282.10 : x
  2. Step 2: Convert to fraction form
    72,634.46/108,995.44 = 28,282.10/x
  3. Step 3: Cross multiply
    72,634.46x = 108,995.44 × 28,282.10
  4. Step 4: Simplify right side
    72,634.46x = 3,082,619,933.62
  5. Step 5: Solve for x
    x = 3,082,619,933.62/72,634.46
  6. Step 6: Final answer
    x = 42,440.19

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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.