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Finding the Fourth Proportional to 68,398.68, 94,394.94 and 38,189.94

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Solution

The fourth proportional to 68,398.68, 94,394.94 and 38,189.94 is: 52,704.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,398.68 : 94,394.94 = 38,189.94 : x
  2. Step 2: Convert to fraction form
    68,398.68/94,394.94 = 38,189.94/x
  3. Step 3: Cross multiply
    68,398.68x = 94,394.94 × 38,189.94
  4. Step 4: Simplify right side
    68,398.68x = 3,604,937,094.90
  5. Step 5: Solve for x
    x = 3,604,937,094.90/68,398.68
  6. Step 6: Final answer
    x = 52,704.78

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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.