Home / 54,099.27-81,078.21-39,156.72

Finding the Fourth Proportional to 54,099.27, 81,078.21 and 39,156.72

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Solution

The fourth proportional to 54,099.27, 81,078.21 and 39,156.72 is: 58,683.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,099.27 : 81,078.21 = 39,156.72 : x
  2. Step 2: Convert to fraction form
    54,099.27/81,078.21 = 39,156.72/x
  3. Step 3: Cross multiply
    54,099.27x = 81,078.21 × 39,156.72
  4. Step 4: Simplify right side
    54,099.27x = 3,174,756,767.07
  5. Step 5: Solve for x
    x = 3,174,756,767.07/54,099.27
  6. Step 6: Final answer
    x = 58,683.91

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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.