Home / 87,849.80-121,232.80-47,563.60

Finding the Fourth Proportional to 87,849.80, 121,232.80 and 47,563.60

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Solution

The fourth proportional to 87,849.80, 121,232.80 and 47,563.60 is: 65,637.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,849.80 : 121,232.80 = 47,563.60 : x
  2. Step 2: Convert to fraction form
    87,849.80/121,232.80 = 47,563.60/x
  3. Step 3: Cross multiply
    87,849.80x = 121,232.80 × 47,563.60
  4. Step 4: Simplify right side
    87,849.80x = 5,766,268,406.08
  5. Step 5: Solve for x
    x = 5,766,268,406.08/87,849.80
  6. Step 6: Final answer
    x = 65,637.81

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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.