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Finding the Fourth Proportional to 81,353.81, 122,035.05 and 25,232.69

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Solution

The fourth proportional to 81,353.81, 122,035.05 and 25,232.69 is: 37,850.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,353.81 : 122,035.05 = 25,232.69 : x
  2. Step 2: Convert to fraction form
    81,353.81/122,035.05 = 25,232.69/x
  3. Step 3: Cross multiply
    81,353.81x = 122,035.05 × 25,232.69
  4. Step 4: Simplify right side
    81,353.81x = 3,079,271,975.61
  5. Step 5: Solve for x
    x = 3,079,271,975.61/81,353.81
  6. Step 6: Final answer
    x = 37,850.37

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1.5x scale

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.