Home / 87,887.57-131,804.42-31,720.82

Finding the Fourth Proportional to 87,887.57, 131,804.42 and 31,720.82

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Solution

The fourth proportional to 87,887.57, 131,804.42 and 31,720.82 is: 47,571.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,887.57 : 131,804.42 = 31,720.82 : x
  2. Step 2: Convert to fraction form
    87,887.57/131,804.42 = 31,720.82/x
  3. Step 3: Cross multiply
    87,887.57x = 131,804.42 × 31,720.82
  4. Step 4: Simplify right side
    87,887.57x = 4,180,943,464.40
  5. Step 5: Solve for x
    x = 4,180,943,464.40/87,887.57
  6. Step 6: Final answer
    x = 47,571.50

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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.