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Finding the Fourth Proportional to 67,811.87, 101,737.67 and 30,363.60

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Solution

The fourth proportional to 67,811.87, 101,737.67 and 30,363.60 is: 45,554.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,811.87 : 101,737.67 = 30,363.60 : x
  2. Step 2: Convert to fraction form
    67,811.87/101,737.67 = 30,363.60/x
  3. Step 3: Cross multiply
    67,811.87x = 101,737.67 × 30,363.60
  4. Step 4: Simplify right side
    67,811.87x = 3,089,121,574.24
  5. Step 5: Solve for x
    x = 3,089,121,574.24/67,811.87
  6. Step 6: Final answer
    x = 45,554.29

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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.