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Finding the Fourth Proportional to 72,014.92, 107,919.40 and 52,889.54

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Solution

The fourth proportional to 72,014.92, 107,919.40 and 52,889.54 is: 79,258.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,014.92 : 107,919.40 = 52,889.54 : x
  2. Step 2: Convert to fraction form
    72,014.92/107,919.40 = 52,889.54/x
  3. Step 3: Cross multiply
    72,014.92x = 107,919.40 × 52,889.54
  4. Step 4: Simplify right side
    72,014.92x = 5,707,807,423.08
  5. Step 5: Solve for x
    x = 5,707,807,423.08/72,014.92
  6. Step 6: Final answer
    x = 79,258.68

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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.