Home / 71,985.64-107,979.42-25,239.88

Finding the Fourth Proportional to 71,985.64, 107,979.42 and 25,239.88

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Solution

The fourth proportional to 71,985.64, 107,979.42 and 25,239.88 is: 37,860.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,985.64 : 107,979.42 = 25,239.88 : x
  2. Step 2: Convert to fraction form
    71,985.64/107,979.42 = 25,239.88/x
  3. Step 3: Cross multiply
    71,985.64x = 107,979.42 × 25,239.88
  4. Step 4: Simplify right side
    71,985.64x = 2,725,387,603.27
  5. Step 5: Solve for x
    x = 2,725,387,603.27/71,985.64
  6. Step 6: Final answer
    x = 37,860.16

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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.