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Finding the Fourth Proportional to 52,563.60, 78,845.40 and 47,379.60

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Solution

The fourth proportional to 52,563.60, 78,845.40 and 47,379.60 is: 71,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,563.60 : 78,845.40 = 47,379.60 : x
  2. Step 2: Convert to fraction form
    52,563.60/78,845.40 = 47,379.60/x
  3. Step 3: Cross multiply
    52,563.60x = 78,845.40 × 47,379.60
  4. Step 4: Simplify right side
    52,563.60x = 3,735,663,513.84
  5. Step 5: Solve for x
    x = 3,735,663,513.84/52,563.60
  6. Step 6: Final answer
    x = 71,069.40

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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.