Home / 87,803.54-121,169.10-47,517.60

Finding the Fourth Proportional to 87,803.54, 121,169.10 and 47,517.60

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Solution

The fourth proportional to 87,803.54, 121,169.10 and 47,517.60 is: 65,574.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,803.54 : 121,169.10 = 47,517.60 : x
  2. Step 2: Convert to fraction form
    87,803.54/121,169.10 = 47,517.60/x
  3. Step 3: Cross multiply
    87,803.54x = 121,169.10 × 47,517.60
  4. Step 4: Simplify right side
    87,803.54x = 5,757,664,220.31
  5. Step 5: Solve for x
    x = 5,757,664,220.31/87,803.54
  6. Step 6: Final answer
    x = 65,574.40

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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.