Home / 55,414.40-83,121.60-49,290.80

Finding the Fourth Proportional to 55,414.40, 83,121.60 and 49,290.80

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Solution

The fourth proportional to 55,414.40, 83,121.60 and 49,290.80 is: 73,936.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,414.40 : 83,121.60 = 49,290.80 : x
  2. Step 2: Convert to fraction form
    55,414.40/83,121.60 = 49,290.80/x
  3. Step 3: Cross multiply
    55,414.40x = 83,121.60 × 49,290.80
  4. Step 4: Simplify right side
    55,414.40x = 4,097,130,161.28
  5. Step 5: Solve for x
    x = 4,097,130,161.28/55,414.40
  6. Step 6: Final answer
    x = 73,936.20

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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.