Home / 40,784.78-61,174.20-18,302.42

Finding the Fourth Proportional to 40,784.78, 61,174.20 and 18,302.42

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Solution

The fourth proportional to 40,784.78, 61,174.20 and 18,302.42 is: 27,452.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,784.78 : 61,174.20 = 18,302.42 : x
  2. Step 2: Convert to fraction form
    40,784.78/61,174.20 = 18,302.42/x
  3. Step 3: Cross multiply
    40,784.78x = 61,174.20 × 18,302.42
  4. Step 4: Simplify right side
    40,784.78x = 1,119,635,901.56
  5. Step 5: Solve for x
    x = 1,119,635,901.56/40,784.78
  6. Step 6: Final answer
    x = 27,452.30

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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.