Home / 55,156.51-82,662.08-21,858.42

Finding the Fourth Proportional to 55,156.51, 82,662.08 and 21,858.42

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Solution

The fourth proportional to 55,156.51, 82,662.08 and 21,858.42 is: 32,758.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,156.51 : 82,662.08 = 21,858.42 : x
  2. Step 2: Convert to fraction form
    55,156.51/82,662.08 = 21,858.42/x
  3. Step 3: Cross multiply
    55,156.51x = 82,662.08 × 21,858.42
  4. Step 4: Simplify right side
    55,156.51x = 1,806,862,517.36
  5. Step 5: Solve for x
    x = 1,806,862,517.36/55,156.51
  6. Step 6: Final answer
    x = 32,758.83

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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.