Home / 71,984.42-107,979.16-19,395.17

Finding the Fourth Proportional to 71,984.42, 107,979.16 and 19,395.17

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Solution

The fourth proportional to 71,984.42, 107,979.16 and 19,395.17 is: 29,093.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,984.42 : 107,979.16 = 19,395.17 : x
  2. Step 2: Convert to fraction form
    71,984.42/107,979.16 = 19,395.17/x
  3. Step 3: Cross multiply
    71,984.42x = 107,979.16 × 19,395.17
  4. Step 4: Simplify right side
    71,984.42x = 2,094,274,164.66
  5. Step 5: Solve for x
    x = 2,094,274,164.66/71,984.42
  6. Step 6: Final answer
    x = 29,093.44

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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.