Home / 87,739.61-121,080.66-47,453.37

Finding the Fourth Proportional to 87,739.61, 121,080.66 and 47,453.37

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Solution

The fourth proportional to 87,739.61, 121,080.66 and 47,453.37 is: 65,485.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,739.61 : 121,080.66 = 47,453.37 : x
  2. Step 2: Convert to fraction form
    87,739.61/121,080.66 = 47,453.37/x
  3. Step 3: Cross multiply
    87,739.61x = 121,080.66 × 47,453.37
  4. Step 4: Simplify right side
    87,739.61x = 5,745,685,180.87
  5. Step 5: Solve for x
    x = 5,745,685,180.87/87,739.61
  6. Step 6: Final answer
    x = 65,485.65

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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.