Home / 71,317.45-106,801.21-47,872.81

Finding the Fourth Proportional to 71,317.45, 106,801.21 and 47,872.81

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Solution

The fourth proportional to 71,317.45, 106,801.21 and 47,872.81 is: 71,691.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,317.45 : 106,801.21 = 47,872.81 : x
  2. Step 2: Convert to fraction form
    71,317.45/106,801.21 = 47,872.81/x
  3. Step 3: Cross multiply
    71,317.45x = 106,801.21 × 47,872.81
  4. Step 4: Simplify right side
    71,317.45x = 5,112,874,034.10
  5. Step 5: Solve for x
    x = 5,112,874,034.10/71,317.45
  6. Step 6: Final answer
    x = 71,691.77

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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.