Home / 55,012.47-82,545.99-21,756.39

Finding the Fourth Proportional to 55,012.47, 82,545.99 and 21,756.39

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Solution

The fourth proportional to 55,012.47, 82,545.99 and 21,756.39 is: 32,645.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,012.47 : 82,545.99 = 21,756.39 : x
  2. Step 2: Convert to fraction form
    55,012.47/82,545.99 = 21,756.39/x
  3. Step 3: Cross multiply
    55,012.47x = 82,545.99 × 21,756.39
  4. Step 4: Simplify right side
    55,012.47x = 1,795,902,751.38
  5. Step 5: Solve for x
    x = 1,795,902,751.38/55,012.47
  6. Step 6: Final answer
    x = 32,645.38

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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.