Home / 55,121.36-82,687.44-21,840.08

Finding the Fourth Proportional to 55,121.36, 82,687.44 and 21,840.08

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Solution

The fourth proportional to 55,121.36, 82,687.44 and 21,840.08 is: 32,762.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,121.36 : 82,687.44 = 21,840.08 : x
  2. Step 2: Convert to fraction form
    55,121.36/82,687.44 = 21,840.08/x
  3. Step 3: Cross multiply
    55,121.36x = 82,687.44 × 21,840.08
  4. Step 4: Simplify right side
    55,121.36x = 1,805,900,304.60
  5. Step 5: Solve for x
    x = 1,805,900,304.60/55,121.36
  6. Step 6: Final answer
    x = 32,762.26

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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.