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Finding the Fourth Proportional to 85,454.92, 117,932.30 and 51,474.08

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Solution

The fourth proportional to 85,454.92, 117,932.30 and 51,474.08 is: 71,036.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,454.92 : 117,932.30 = 51,474.08 : x
  2. Step 2: Convert to fraction form
    85,454.92/117,932.30 = 51,474.08/x
  3. Step 3: Cross multiply
    85,454.92x = 117,932.30 × 51,474.08
  4. Step 4: Simplify right side
    85,454.92x = 6,070,456,644.78
  5. Step 5: Solve for x
    x = 6,070,456,644.78/85,454.92
  6. Step 6: Final answer
    x = 71,036.95

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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.