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Finding the Fourth Proportional to 71,366.60, 106,920.30 and 58,147.40

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Solution

The fourth proportional to 71,366.60, 106,920.30 and 58,147.40 is: 87,115.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,366.60 : 106,920.30 = 58,147.40 : x
  2. Step 2: Convert to fraction form
    71,366.60/106,920.30 = 58,147.40/x
  3. Step 3: Cross multiply
    71,366.60x = 106,920.30 × 58,147.40
  4. Step 4: Simplify right side
    71,366.60x = 6,217,137,452.22
  5. Step 5: Solve for x
    x = 6,217,137,452.22/71,366.60
  6. Step 6: Final answer
    x = 87,115.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.