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Finding the Fourth Proportional to 81,652.50, 112,671.81 and 45,846.54

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Solution

The fourth proportional to 81,652.50, 112,671.81 and 45,846.54 is: 63,263.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,652.50 : 112,671.81 = 45,846.54 : x
  2. Step 2: Convert to fraction form
    81,652.50/112,671.81 = 45,846.54/x
  3. Step 3: Cross multiply
    81,652.50x = 112,671.81 × 45,846.54
  4. Step 4: Simplify right side
    81,652.50x = 5,165,612,644.04
  5. Step 5: Solve for x
    x = 5,165,612,644.04/81,652.50
  6. Step 6: Final answer
    x = 63,263.37

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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.