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Finding the Fourth Proportional to 80,064, 110,478.72 and 47,792.64

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Solution

The fourth proportional to 80,064, 110,478.72 and 47,792.64 is: 65,948.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,064 : 110,478.72 = 47,792.64 : x
  2. Step 2: Convert to fraction form
    80,064/110,478.72 = 47,792.64/x
  3. Step 3: Cross multiply
    80,064x = 110,478.72 × 47,792.64
  4. Step 4: Simplify right side
    80,064x = 5,280,069,692.62
  5. Step 5: Solve for x
    x = 5,280,069,692.62/80,064
  6. Step 6: Final answer
    x = 65,948.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.