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Finding the Fourth Proportional to 68,352, 94,331.52 and 38,549.76

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Solution

The fourth proportional to 68,352, 94,331.52 and 38,549.76 is: 53,201.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,352 : 94,331.52 = 38,549.76 : x
  2. Step 2: Convert to fraction form
    68,352/94,331.52 = 38,549.76/x
  3. Step 3: Cross multiply
    68,352x = 94,331.52 × 38,549.76
  4. Step 4: Simplify right side
    68,352x = 3,636,457,456.44
  5. Step 5: Solve for x
    x = 3,636,457,456.44/68,352
  6. Step 6: Final answer
    x = 53,201.92

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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.