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Finding the Fourth Proportional to 40,036, 60,043.20 and 15,074.32

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Solution

The fourth proportional to 40,036, 60,043.20 and 15,074.32 is: 22,607.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,036 : 60,043.20 = 15,074.32 : x
  2. Step 2: Convert to fraction form
    40,036/60,043.20 = 15,074.32/x
  3. Step 3: Cross multiply
    40,036x = 60,043.20 × 15,074.32
  4. Step 4: Simplify right side
    40,036x = 905,110,410.62
  5. Step 5: Solve for x
    x = 905,110,410.62/40,036
  6. Step 6: Final answer
    x = 22,607.41

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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.