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Finding the Fourth Proportional to 45,586.60, 68,420.40 and 26,843.20

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Solution

The fourth proportional to 45,586.60, 68,420.40 and 26,843.20 is: 40,288.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,586.60 : 68,420.40 = 26,843.20 : x
  2. Step 2: Convert to fraction form
    45,586.60/68,420.40 = 26,843.20/x
  3. Step 3: Cross multiply
    45,586.60x = 68,420.40 × 26,843.20
  4. Step 4: Simplify right side
    45,586.60x = 1,836,622,481.28
  5. Step 5: Solve for x
    x = 1,836,622,481.28/45,586.60
  6. Step 6: Final answer
    x = 40,288.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.