Home / 87,801.50-121,166.37-47,515.25

Finding the Fourth Proportional to 87,801.50, 121,166.37 and 47,515.25

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Solution

The fourth proportional to 87,801.50, 121,166.37 and 47,515.25 is: 65,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,801.50 : 121,166.37 = 47,515.25 : x
  2. Step 2: Convert to fraction form
    87,801.50/121,166.37 = 47,515.25/x
  3. Step 3: Cross multiply
    87,801.50x = 121,166.37 × 47,515.25
  4. Step 4: Simplify right side
    87,801.50x = 5,757,249,518.73
  5. Step 5: Solve for x
    x = 5,757,249,518.73/87,801.50
  6. Step 6: Final answer
    x = 65,571.20

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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.