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Finding the Fourth Proportional to 71,904.08, 107,865.84 and 67,530.08

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Solution

The fourth proportional to 71,904.08, 107,865.84 and 67,530.08 is: 101,304.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,904.08 : 107,865.84 = 67,530.08 : x
  2. Step 2: Convert to fraction form
    71,904.08/107,865.84 = 67,530.08/x
  3. Step 3: Cross multiply
    71,904.08x = 107,865.84 × 67,530.08
  4. Step 4: Simplify right side
    71,904.08x = 7,284,188,804.47
  5. Step 5: Solve for x
    x = 7,284,188,804.47/71,904.08
  6. Step 6: Final answer
    x = 101,304.25

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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.