Home / 55,209.05-82,814.93-20,148.70

Finding the Fourth Proportional to 55,209.05, 82,814.93 and 20,148.70

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Solution

The fourth proportional to 55,209.05, 82,814.93 and 20,148.70 is: 30,223.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,209.05 : 82,814.93 = 20,148.70 : x
  2. Step 2: Convert to fraction form
    55,209.05/82,814.93 = 20,148.70/x
  3. Step 3: Cross multiply
    55,209.05x = 82,814.93 × 20,148.70
  4. Step 4: Simplify right side
    55,209.05x = 1,668,613,180.09
  5. Step 5: Solve for x
    x = 1,668,613,180.09/55,209.05
  6. Step 6: Final answer
    x = 30,223.54

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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.