Home / 72,724.64-109,087.56-22,812.44

Finding the Fourth Proportional to 72,724.64, 109,087.56 and 22,812.44

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Solution

The fourth proportional to 72,724.64, 109,087.56 and 22,812.44 is: 34,218.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,724.64 : 109,087.56 = 22,812.44 : x
  2. Step 2: Convert to fraction form
    72,724.64/109,087.56 = 22,812.44/x
  3. Step 3: Cross multiply
    72,724.64x = 109,087.56 × 22,812.44
  4. Step 4: Simplify right side
    72,724.64x = 2,488,552,871.81
  5. Step 5: Solve for x
    x = 2,488,552,871.81/72,724.64
  6. Step 6: Final answer
    x = 34,218.84

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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.