Home / 55,141.90-82,725.30-20,081.25

Finding the Fourth Proportional to 55,141.90, 82,725.30 and 20,081.25

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Solution

The fourth proportional to 55,141.90, 82,725.30 and 20,081.25 is: 30,126.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,141.90 : 82,725.30 = 20,081.25 : x
  2. Step 2: Convert to fraction form
    55,141.90/82,725.30 = 20,081.25/x
  3. Step 3: Cross multiply
    55,141.90x = 82,725.30 × 20,081.25
  4. Step 4: Simplify right side
    55,141.90x = 1,661,227,430.63
  5. Step 5: Solve for x
    x = 1,661,227,430.63/55,141.90
  6. Step 6: Final answer
    x = 30,126.41

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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.