Home / 55,135.07-82,729.97-21,854.42

Finding the Fourth Proportional to 55,135.07, 82,729.97 and 21,854.42

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Solution

The fourth proportional to 55,135.07, 82,729.97 and 21,854.42 is: 32,792.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,135.07 : 82,729.97 = 21,854.42 : x
  2. Step 2: Convert to fraction form
    55,135.07/82,729.97 = 21,854.42/x
  3. Step 3: Cross multiply
    55,135.07x = 82,729.97 × 21,854.42
  4. Step 4: Simplify right side
    55,135.07x = 1,808,015,510.97
  5. Step 5: Solve for x
    x = 1,808,015,510.97/55,135.07
  6. Step 6: Final answer
    x = 32,792.48

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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.