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Finding the Fourth Proportional to 40,366, 60,558.72 and 12,664

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Solution

The fourth proportional to 40,366, 60,558.72 and 12,664 is: 18,999.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,366 : 60,558.72 = 12,664 : x
  2. Step 2: Convert to fraction form
    40,366/60,558.72 = 12,664/x
  3. Step 3: Cross multiply
    40,366x = 60,558.72 × 12,664
  4. Step 4: Simplify right side
    40,366x = 766,915,630.08
  5. Step 5: Solve for x
    x = 766,915,630.08/40,366
  6. Step 6: Final answer
    x = 18,999.05

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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.