Home / 81,380.45-112,314.60-45,563.54

Finding the Fourth Proportional to 81,380.45, 112,314.60 and 45,563.54

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Solution

The fourth proportional to 81,380.45, 112,314.60 and 45,563.54 is: 62,883.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,380.45 : 112,314.60 = 45,563.54 : x
  2. Step 2: Convert to fraction form
    81,380.45/112,314.60 = 45,563.54/x
  3. Step 3: Cross multiply
    81,380.45x = 112,314.60 × 45,563.54
  4. Step 4: Simplify right side
    81,380.45x = 5,117,450,208.11
  5. Step 5: Solve for x
    x = 5,117,450,208.11/81,380.45
  6. Step 6: Final answer
    x = 62,883.05

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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.