Home / 82,815.27-124,172.28-40,641.81

Finding the Fourth Proportional to 82,815.27, 124,172.28 and 40,641.81

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Solution

The fourth proportional to 82,815.27, 124,172.28 and 40,641.81 is: 60,937.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,815.27 : 124,172.28 = 40,641.81 : x
  2. Step 2: Convert to fraction form
    82,815.27/124,172.28 = 40,641.81/x
  3. Step 3: Cross multiply
    82,815.27x = 124,172.28 × 40,641.81
  4. Step 4: Simplify right side
    82,815.27x = 5,046,586,211.03
  5. Step 5: Solve for x
    x = 5,046,586,211.03/82,815.27
  6. Step 6: Final answer
    x = 60,937.87

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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.