Home / 67,988.97-101,975.36-18,072.72

Finding the Fourth Proportional to 67,988.97, 101,975.36 and 18,072.72

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Solution

The fourth proportional to 67,988.97, 101,975.36 and 18,072.72 is: 27,106.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,988.97 : 101,975.36 = 18,072.72 : x
  2. Step 2: Convert to fraction form
    67,988.97/101,975.36 = 18,072.72/x
  3. Step 3: Cross multiply
    67,988.97x = 101,975.36 × 18,072.72
  4. Step 4: Simplify right side
    67,988.97x = 1,842,972,037.82
  5. Step 5: Solve for x
    x = 1,842,972,037.82/67,988.97
  6. Step 6: Final answer
    x = 27,106.93

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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.