Home / 68,390.28-94,380.39-38,175.48

Finding the Fourth Proportional to 68,390.28, 94,380.39 and 38,175.48

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Solution

The fourth proportional to 68,390.28, 94,380.39 and 38,175.48 is: 52,683.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,390.28 : 94,380.39 = 38,175.48 : x
  2. Step 2: Convert to fraction form
    68,390.28/94,380.39 = 38,175.48/x
  3. Step 3: Cross multiply
    68,390.28x = 94,380.39 × 38,175.48
  4. Step 4: Simplify right side
    68,390.28x = 3,603,016,690.84
  5. Step 5: Solve for x
    x = 3,603,016,690.84/68,390.28
  6. Step 6: Final answer
    x = 52,683.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.