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Finding the Fourth Proportional to 68,314.84, 94,274.28 and 38,100.20

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Solution

The fourth proportional to 68,314.84, 94,274.28 and 38,100.20 is: 52,578.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,314.84 : 94,274.28 = 38,100.20 : x
  2. Step 2: Convert to fraction form
    68,314.84/94,274.28 = 38,100.20/x
  3. Step 3: Cross multiply
    68,314.84x = 94,274.28 × 38,100.20
  4. Step 4: Simplify right side
    68,314.84x = 3,591,868,922.86
  5. Step 5: Solve for x
    x = 3,591,868,922.86/68,314.84
  6. Step 6: Final answer
    x = 52,578.16

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1.5x scale

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.