Home / 55,731.04-83,614.32-20,675.68

Finding the Fourth Proportional to 55,731.04, 83,614.32 and 20,675.68

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Solution

The fourth proportional to 55,731.04, 83,614.32 and 20,675.68 is: 31,020.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,731.04 : 83,614.32 = 20,675.68 : x
  2. Step 2: Convert to fraction form
    55,731.04/83,614.32 = 20,675.68/x
  3. Step 3: Cross multiply
    55,731.04x = 83,614.32 × 20,675.68
  4. Step 4: Simplify right side
    55,731.04x = 1,728,782,923.74
  5. Step 5: Solve for x
    x = 1,728,782,923.74/55,731.04
  6. Step 6: Final answer
    x = 31,020.11

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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.