Home / 55,977.60-83,942.10-18,523.20

Finding the Fourth Proportional to 55,977.60, 83,942.10 and 18,523.20

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Solution

The fourth proportional to 55,977.60, 83,942.10 and 18,523.20 is: 27,776.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,977.60 : 83,942.10 = 18,523.20 : x
  2. Step 2: Convert to fraction form
    55,977.60/83,942.10 = 18,523.20/x
  3. Step 3: Cross multiply
    55,977.60x = 83,942.10 × 18,523.20
  4. Step 4: Simplify right side
    55,977.60x = 1,554,876,306.72
  5. Step 5: Solve for x
    x = 1,554,876,306.72/55,977.60
  6. Step 6: Final answer
    x = 27,776.76

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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.