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Finding the Fourth Proportional to 43,162.44, 64,728 and 15,074.61

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Solution

The fourth proportional to 43,162.44, 64,728 and 15,074.61 is: 22,606.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,162.44 : 64,728 = 15,074.61 : x
  2. Step 2: Convert to fraction form
    43,162.44/64,728 = 15,074.61/x
  3. Step 3: Cross multiply
    43,162.44x = 64,728 × 15,074.61
  4. Step 4: Simplify right side
    43,162.44x = 975,749,356.08
  5. Step 5: Solve for x
    x = 975,749,356.08/43,162.44
  6. Step 6: Final answer
    x = 22,606.45

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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.