Home / 71,869.48-107,815.74-30,322.60

Finding the Fourth Proportional to 71,869.48, 107,815.74 and 30,322.60

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Solution

The fourth proportional to 71,869.48, 107,815.74 and 30,322.60 is: 45,488.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,869.48 : 107,815.74 = 30,322.60 : x
  2. Step 2: Convert to fraction form
    71,869.48/107,815.74 = 30,322.60/x
  3. Step 3: Cross multiply
    71,869.48x = 107,815.74 × 30,322.60
  4. Step 4: Simplify right side
    71,869.48x = 3,269,253,557.72
  5. Step 5: Solve for x
    x = 3,269,253,557.72/71,869.48
  6. Step 6: Final answer
    x = 45,488.76

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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.