Home / 217,711.47-326,579.36-67,972.44

Finding the Fourth Proportional to 217,711.47, 326,579.36 and 67,972.44

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Solution

The fourth proportional to 217,711.47, 326,579.36 and 67,972.44 is: 101,962.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,711.47 : 326,579.36 = 67,972.44 : x
  2. Step 2: Convert to fraction form
    217,711.47/326,579.36 = 67,972.44/x
  3. Step 3: Cross multiply
    217,711.47x = 326,579.36 × 67,972.44
  4. Step 4: Simplify right side
    217,711.47x = 22,198,395,952.84
  5. Step 5: Solve for x
    x = 22,198,395,952.84/217,711.47
  6. Step 6: Final answer
    x = 101,962.45

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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.