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Finding the Fourth Proportional to 72,306, 108,347.04 and 50,163.12

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Solution

The fourth proportional to 72,306, 108,347.04 and 50,163.12 is: 75,167.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,306 : 108,347.04 = 50,163.12 : x
  2. Step 2: Convert to fraction form
    72,306/108,347.04 = 50,163.12/x
  3. Step 3: Cross multiply
    72,306x = 108,347.04 × 50,163.12
  4. Step 4: Simplify right side
    72,306x = 5,435,025,569.16
  5. Step 5: Solve for x
    x = 5,435,025,569.16/72,306
  6. Step 6: Final answer
    x = 75,167.01

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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.