Home / 55,860.66-83,830.98-20,321.92

Finding the Fourth Proportional to 55,860.66, 83,830.98 and 20,321.92

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Solution

The fourth proportional to 55,860.66, 83,830.98 and 20,321.92 is: 30,497.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,860.66 : 83,830.98 = 20,321.92 : x
  2. Step 2: Convert to fraction form
    55,860.66/83,830.98 = 20,321.92/x
  3. Step 3: Cross multiply
    55,860.66x = 83,830.98 × 20,321.92
  4. Step 4: Simplify right side
    55,860.66x = 1,703,606,469.08
  5. Step 5: Solve for x
    x = 1,703,606,469.08/55,860.66
  6. Step 6: Final answer
    x = 30,497.43

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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.