Home / 87,801.45-121,166.37-47,515.22

Finding the Fourth Proportional to 87,801.45, 121,166.37 and 47,515.22

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Solution

The fourth proportional to 87,801.45, 121,166.37 and 47,515.22 is: 65,571.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,801.45 : 121,166.37 = 47,515.22 : x
  2. Step 2: Convert to fraction form
    87,801.45/121,166.37 = 47,515.22/x
  3. Step 3: Cross multiply
    87,801.45x = 121,166.37 × 47,515.22
  4. Step 4: Simplify right side
    87,801.45x = 5,757,245,883.74
  5. Step 5: Solve for x
    x = 5,757,245,883.74/87,801.45
  6. Step 6: Final answer
    x = 65,571.19

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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.