Home / 55,679.70-83,508.21-20,611.02

Finding the Fourth Proportional to 55,679.70, 83,508.21 and 20,611.02

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Solution

The fourth proportional to 55,679.70, 83,508.21 and 20,611.02 is: 30,912.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,679.70 : 83,508.21 = 20,611.02 : x
  2. Step 2: Convert to fraction form
    55,679.70/83,508.21 = 20,611.02/x
  3. Step 3: Cross multiply
    55,679.70x = 83,508.21 × 20,611.02
  4. Step 4: Simplify right side
    55,679.70x = 1,721,189,386.47
  5. Step 5: Solve for x
    x = 1,721,189,386.47/55,679.70
  6. Step 6: Final answer
    x = 30,912.33

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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.