Home / 55,966.60-83,964.36-20,906.56

Finding the Fourth Proportional to 55,966.60, 83,964.36 and 20,906.56

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Solution

The fourth proportional to 55,966.60, 83,964.36 and 20,906.56 is: 31,365.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,966.60 : 83,964.36 = 20,906.56 : x
  2. Step 2: Convert to fraction form
    55,966.60/83,964.36 = 20,906.56/x
  3. Step 3: Cross multiply
    55,966.60x = 83,964.36 × 20,906.56
  4. Step 4: Simplify right side
    55,966.60x = 1,755,405,930.20
  5. Step 5: Solve for x
    x = 1,755,405,930.20/55,966.60
  6. Step 6: Final answer
    x = 31,365.24

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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.