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Finding the Fourth Proportional to 67,654.38, 93,372.94 and 38,968.46

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Solution

The fourth proportional to 67,654.38, 93,372.94 and 38,968.46 is: 53,782.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,654.38 : 93,372.94 = 38,968.46 : x
  2. Step 2: Convert to fraction form
    67,654.38/93,372.94 = 38,968.46/x
  3. Step 3: Cross multiply
    67,654.38x = 93,372.94 × 38,968.46
  4. Step 4: Simplify right side
    67,654.38x = 3,638,599,677.47
  5. Step 5: Solve for x
    x = 3,638,599,677.47/67,654.38
  6. Step 6: Final answer
    x = 53,782.17

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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.