Home / 71,072.64-106,516.49-28,903.56

Finding the Fourth Proportional to 71,072.64, 106,516.49 and 28,903.56

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Solution

The fourth proportional to 71,072.64, 106,516.49 and 28,903.56 is: 43,317.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,072.64 : 106,516.49 = 28,903.56 : x
  2. Step 2: Convert to fraction form
    71,072.64/106,516.49 = 28,903.56/x
  3. Step 3: Cross multiply
    71,072.64x = 106,516.49 × 28,903.56
  4. Step 4: Simplify right side
    71,072.64x = 3,078,705,759.70
  5. Step 5: Solve for x
    x = 3,078,705,759.70/71,072.64
  6. Step 6: Final answer
    x = 43,317.74

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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.