Home / 87,245.37-120,399.69-51,433.23

Finding the Fourth Proportional to 87,245.37, 120,399.69 and 51,433.23

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Solution

The fourth proportional to 87,245.37, 120,399.69 and 51,433.23 is: 70,978.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,245.37 : 120,399.69 = 51,433.23 : x
  2. Step 2: Convert to fraction form
    87,245.37/120,399.69 = 51,433.23/x
  3. Step 3: Cross multiply
    87,245.37x = 120,399.69 × 51,433.23
  4. Step 4: Simplify right side
    87,245.37x = 6,192,544,947.70
  5. Step 5: Solve for x
    x = 6,192,544,947.70/87,245.37
  6. Step 6: Final answer
    x = 70,978.49

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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.