Home / 53,418.60-80,129.79-18,358.02

Finding the Fourth Proportional to 53,418.60, 80,129.79 and 18,358.02

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Solution

The fourth proportional to 53,418.60, 80,129.79 and 18,358.02 is: 27,537.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,418.60 : 80,129.79 = 18,358.02 : x
  2. Step 2: Convert to fraction form
    53,418.60/80,129.79 = 18,358.02/x
  3. Step 3: Cross multiply
    53,418.60x = 80,129.79 × 18,358.02
  4. Step 4: Simplify right side
    53,418.60x = 1,471,024,287.42
  5. Step 5: Solve for x
    x = 1,471,024,287.42/53,418.60
  6. Step 6: Final answer
    x = 27,537.68

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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.