Home / 55,151.28-82,683.18-20,071.80

Finding the Fourth Proportional to 55,151.28, 82,683.18 and 20,071.80

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Solution

The fourth proportional to 55,151.28, 82,683.18 and 20,071.80 is: 30,091.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,151.28 : 82,683.18 = 20,071.80 : x
  2. Step 2: Convert to fraction form
    55,151.28/82,683.18 = 20,071.80/x
  3. Step 3: Cross multiply
    55,151.28x = 82,683.18 × 20,071.80
  4. Step 4: Simplify right side
    55,151.28x = 1,659,600,252.32
  5. Step 5: Solve for x
    x = 1,659,600,252.32/55,151.28
  6. Step 6: Final answer
    x = 30,091.78

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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.