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Finding the Fourth Proportional to 52,812, 79,219.02 and 19,514.88

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Solution

The fourth proportional to 52,812, 79,219.02 and 19,514.88 is: 29,272.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,812 : 79,219.02 = 19,514.88 : x
  2. Step 2: Convert to fraction form
    52,812/79,219.02 = 19,514.88/x
  3. Step 3: Cross multiply
    52,812x = 79,219.02 × 19,514.88
  4. Step 4: Simplify right side
    52,812x = 1,545,949,669.02
  5. Step 5: Solve for x
    x = 1,545,949,669.02/52,812
  6. Step 6: Final answer
    x = 29,272.70

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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.