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Finding the Fourth Proportional to 73,880.60, 102,367.01 and 72,284.41

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Solution

The fourth proportional to 73,880.60, 102,367.01 and 72,284.41 is: 100,155.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,880.60 : 102,367.01 = 72,284.41 : x
  2. Step 2: Convert to fraction form
    73,880.60/102,367.01 = 72,284.41/x
  3. Step 3: Cross multiply
    73,880.60x = 102,367.01 × 72,284.41
  4. Step 4: Simplify right side
    73,880.60x = 7,399,538,409.48
  5. Step 5: Solve for x
    x = 7,399,538,409.48/73,880.60
  6. Step 6: Final answer
    x = 100,155.36

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.