Home / 55,458-83,136.24-20,370.96

Finding the Fourth Proportional to 55,458, 83,136.24 and 20,370.96

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Solution

The fourth proportional to 55,458, 83,136.24 and 20,370.96 is: 30,537.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,458 : 83,136.24 = 20,370.96 : x
  2. Step 2: Convert to fraction form
    55,458/83,136.24 = 20,370.96/x
  3. Step 3: Cross multiply
    55,458x = 83,136.24 × 20,370.96
  4. Step 4: Simplify right side
    55,458x = 1,693,565,019.59
  5. Step 5: Solve for x
    x = 1,693,565,019.59/55,458
  6. Step 6: Final answer
    x = 30,537.79

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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.