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Finding the Fourth Proportional to 81,622.44, 112,647.60 and 45,812.70

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Solution

The fourth proportional to 81,622.44, 112,647.60 and 45,812.70 is: 63,226.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,622.44 : 112,647.60 = 45,812.70 : x
  2. Step 2: Convert to fraction form
    81,622.44/112,647.60 = 45,812.70/x
  3. Step 3: Cross multiply
    81,622.44x = 112,647.60 × 45,812.70
  4. Step 4: Simplify right side
    81,622.44x = 5,160,690,704.52
  5. Step 5: Solve for x
    x = 5,160,690,704.52/81,622.44
  6. Step 6: Final answer
    x = 63,226.37

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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.