Home / 55,211.22-82,765.80-20,126.34

Finding the Fourth Proportional to 55,211.22, 82,765.80 and 20,126.34

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Solution

The fourth proportional to 55,211.22, 82,765.80 and 20,126.34 is: 30,170.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,211.22 : 82,765.80 = 20,126.34 : x
  2. Step 2: Convert to fraction form
    55,211.22/82,765.80 = 20,126.34/x
  3. Step 3: Cross multiply
    55,211.22x = 82,765.80 × 20,126.34
  4. Step 4: Simplify right side
    55,211.22x = 1,665,772,631.17
  5. Step 5: Solve for x
    x = 1,665,772,631.17/55,211.22
  6. Step 6: Final answer
    x = 30,170.91

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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.