Home / 57,272.81-85,444.17-54,172.73

Finding the Fourth Proportional to 57,272.81, 85,444.17 and 54,172.73

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Solution

The fourth proportional to 57,272.81, 85,444.17 and 54,172.73 is: 80,819.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,272.81 : 85,444.17 = 54,172.73 : x
  2. Step 2: Convert to fraction form
    57,272.81/85,444.17 = 54,172.73/x
  3. Step 3: Cross multiply
    57,272.81x = 85,444.17 × 54,172.73
  4. Step 4: Simplify right side
    57,272.81x = 4,628,743,680.62
  5. Step 5: Solve for x
    x = 4,628,743,680.62/57,272.81
  6. Step 6: Final answer
    x = 80,819.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.