Home / 71,985.64-107,979.18-25,239.64

Finding the Fourth Proportional to 71,985.64, 107,979.18 and 25,239.64

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Solution

The fourth proportional to 71,985.64, 107,979.18 and 25,239.64 is: 37,859.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,985.64 : 107,979.18 = 25,239.64 : x
  2. Step 2: Convert to fraction form
    71,985.64/107,979.18 = 25,239.64/x
  3. Step 3: Cross multiply
    71,985.64x = 107,979.18 × 25,239.64
  4. Step 4: Simplify right side
    71,985.64x = 2,725,355,630.70
  5. Step 5: Solve for x
    x = 2,725,355,630.70/71,985.64
  6. Step 6: Final answer
    x = 37,859.71

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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.