Home / 68,839.94-103,258.40-28,304.91

Finding the Fourth Proportional to 68,839.94, 103,258.40 and 28,304.91

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Solution

The fourth proportional to 68,839.94, 103,258.40 and 28,304.91 is: 42,456.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,839.94 : 103,258.40 = 28,304.91 : x
  2. Step 2: Convert to fraction form
    68,839.94/103,258.40 = 28,304.91/x
  3. Step 3: Cross multiply
    68,839.94x = 103,258.40 × 28,304.91
  4. Step 4: Simplify right side
    68,839.94x = 2,922,719,577.22
  5. Step 5: Solve for x
    x = 2,922,719,577.22/68,839.94
  6. Step 6: Final answer
    x = 42,456.74

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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.