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Finding the Fourth Proportional to 73,120.44, 109,688.98 and 35,653.72

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Solution

The fourth proportional to 73,120.44, 109,688.98 and 35,653.72 is: 53,484.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,120.44 : 109,688.98 = 35,653.72 : x
  2. Step 2: Convert to fraction form
    73,120.44/109,688.98 = 35,653.72/x
  3. Step 3: Cross multiply
    73,120.44x = 109,688.98 × 35,653.72
  4. Step 4: Simplify right side
    73,120.44x = 3,910,820,180.01
  5. Step 5: Solve for x
    x = 3,910,820,180.01/73,120.44
  6. Step 6: Final answer
    x = 53,484.64

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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.