Home / 55,817.26-83,758.53-20,781.74

Finding the Fourth Proportional to 55,817.26, 83,758.53 and 20,781.74

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Solution

The fourth proportional to 55,817.26, 83,758.53 and 20,781.74 is: 31,184.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,817.26 : 83,758.53 = 20,781.74 : x
  2. Step 2: Convert to fraction form
    55,817.26/83,758.53 = 20,781.74/x
  3. Step 3: Cross multiply
    55,817.26x = 83,758.53 × 20,781.74
  4. Step 4: Simplify right side
    55,817.26x = 1,740,647,993.24
  5. Step 5: Solve for x
    x = 1,740,647,993.24/55,817.26
  6. Step 6: Final answer
    x = 31,184.76

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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.