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Finding the Fourth Proportional to 81,832.80, 112,926.96 and 49,586.50

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Solution

The fourth proportional to 81,832.80, 112,926.96 and 49,586.50 is: 68,427.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,832.80 : 112,926.96 = 49,586.50 : x
  2. Step 2: Convert to fraction form
    81,832.80/112,926.96 = 49,586.50/x
  3. Step 3: Cross multiply
    81,832.80x = 112,926.96 × 49,586.50
  4. Step 4: Simplify right side
    81,832.80x = 5,599,652,702.04
  5. Step 5: Solve for x
    x = 5,599,652,702.04/81,832.80
  6. Step 6: Final answer
    x = 68,427.97

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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.