Home / 64,642.11-96,963.17-20,272.43

Finding the Fourth Proportional to 64,642.11, 96,963.17 and 20,272.43

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Solution

The fourth proportional to 64,642.11, 96,963.17 and 20,272.43 is: 30,408.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,642.11 : 96,963.17 = 20,272.43 : x
  2. Step 2: Convert to fraction form
    64,642.11/96,963.17 = 20,272.43/x
  3. Step 3: Cross multiply
    64,642.11x = 96,963.17 × 20,272.43
  4. Step 4: Simplify right side
    64,642.11x = 1,965,679,369.49
  5. Step 5: Solve for x
    x = 1,965,679,369.49/64,642.11
  6. Step 6: Final answer
    x = 30,408.65

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1.5x scale

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.