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Finding the Fourth Proportional to 40,404.60, 60,616.50 and 12,702.60

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Solution

The fourth proportional to 40,404.60, 60,616.50 and 12,702.60 is: 19,056.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,404.60 : 60,616.50 = 12,702.60 : x
  2. Step 2: Convert to fraction form
    40,404.60/60,616.50 = 12,702.60/x
  3. Step 3: Cross multiply
    40,404.60x = 60,616.50 × 12,702.60
  4. Step 4: Simplify right side
    40,404.60x = 769,987,152.90
  5. Step 5: Solve for x
    x = 769,987,152.90/40,404.60
  6. Step 6: Final answer
    x = 19,056.92

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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.