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Finding the Fourth Proportional to 40,645.60, 60,970.02 and 12,563.15

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Solution

The fourth proportional to 40,645.60, 60,970.02 and 12,563.15 is: 18,845.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,645.60 : 60,970.02 = 12,563.15 : x
  2. Step 2: Convert to fraction form
    40,645.60/60,970.02 = 12,563.15/x
  3. Step 3: Cross multiply
    40,645.60x = 60,970.02 × 12,563.15
  4. Step 4: Simplify right side
    40,645.60x = 765,975,497.76
  5. Step 5: Solve for x
    x = 765,975,497.76/40,645.60
  6. Step 6: Final answer
    x = 18,845.23

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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.