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Finding the Fourth Proportional to 52,652.80, 79,000.80 and 19,388.80

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Solution

The fourth proportional to 52,652.80, 79,000.80 and 19,388.80 is: 29,091.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,652.80 : 79,000.80 = 19,388.80 : x
  2. Step 2: Convert to fraction form
    52,652.80/79,000.80 = 19,388.80/x
  3. Step 3: Cross multiply
    52,652.80x = 79,000.80 × 19,388.80
  4. Step 4: Simplify right side
    52,652.80x = 1,531,730,711.04
  5. Step 5: Solve for x
    x = 1,531,730,711.04/52,652.80
  6. Step 6: Final answer
    x = 29,091.15

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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.