Home / 53,384.78-80,082.63-18,319.88

Finding the Fourth Proportional to 53,384.78, 80,082.63 and 18,319.88

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Solution

The fourth proportional to 53,384.78, 80,082.63 and 18,319.88 is: 27,481.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,384.78 : 80,082.63 = 18,319.88 : x
  2. Step 2: Convert to fraction form
    53,384.78/80,082.63 = 18,319.88/x
  3. Step 3: Cross multiply
    53,384.78x = 80,082.63 × 18,319.88
  4. Step 4: Simplify right side
    53,384.78x = 1,467,103,771.27
  5. Step 5: Solve for x
    x = 1,467,103,771.27/53,384.78
  6. Step 6: Final answer
    x = 27,481.69

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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.