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Finding the Fourth Proportional to 62,427.60, 93,641.40 and 20,874.60

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Solution

The fourth proportional to 62,427.60, 93,641.40 and 20,874.60 is: 31,311.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,427.60 : 93,641.40 = 20,874.60 : x
  2. Step 2: Convert to fraction form
    62,427.60/93,641.40 = 20,874.60/x
  3. Step 3: Cross multiply
    62,427.60x = 93,641.40 × 20,874.60
  4. Step 4: Simplify right side
    62,427.60x = 1,954,726,768.44
  5. Step 5: Solve for x
    x = 1,954,726,768.44/62,427.60
  6. Step 6: Final answer
    x = 31,311.90

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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.