Home / 55,391.73-83,131.20-20,341.41

Finding the Fourth Proportional to 55,391.73, 83,131.20 and 20,341.41

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Solution

The fourth proportional to 55,391.73, 83,131.20 and 20,341.41 is: 30,528.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,391.73 : 83,131.20 = 20,341.41 : x
  2. Step 2: Convert to fraction form
    55,391.73/83,131.20 = 20,341.41/x
  3. Step 3: Cross multiply
    55,391.73x = 83,131.20 × 20,341.41
  4. Step 4: Simplify right side
    55,391.73x = 1,691,005,822.99
  5. Step 5: Solve for x
    x = 1,691,005,822.99/55,391.73
  6. Step 6: Final answer
    x = 30,528.13

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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.