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Finding the Fourth Proportional to 85,398.91, 117,850.48 and 47,673.16

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Solution

The fourth proportional to 85,398.91, 117,850.48 and 47,673.16 is: 65,788.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,398.91 : 117,850.48 = 47,673.16 : x
  2. Step 2: Convert to fraction form
    85,398.91/117,850.48 = 47,673.16/x
  3. Step 3: Cross multiply
    85,398.91x = 117,850.48 × 47,673.16
  4. Step 4: Simplify right side
    85,398.91x = 5,618,304,375.31
  5. Step 5: Solve for x
    x = 5,618,304,375.31/85,398.91
  6. Step 6: Final answer
    x = 65,788.95

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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.