Home / 85,040.70-117,340.26-47,314.94

Finding the Fourth Proportional to 85,040.70, 117,340.26 and 47,314.94

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Solution

The fourth proportional to 85,040.70, 117,340.26 and 47,314.94 is: 65,285.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,040.70 : 117,340.26 = 47,314.94 : x
  2. Step 2: Convert to fraction form
    85,040.70/117,340.26 = 47,314.94/x
  3. Step 3: Cross multiply
    85,040.70x = 117,340.26 × 47,314.94
  4. Step 4: Simplify right side
    85,040.70x = 5,551,947,361.48
  5. Step 5: Solve for x
    x = 5,551,947,361.48/85,040.70
  6. Step 6: Final answer
    x = 65,285.77

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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.