Home / 87,589.44-120,888.72-51,776.64

Finding the Fourth Proportional to 87,589.44, 120,888.72 and 51,776.64

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Solution

The fourth proportional to 87,589.44, 120,888.72 and 51,776.64 is: 71,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,589.44 : 120,888.72 = 51,776.64 : x
  2. Step 2: Convert to fraction form
    87,589.44/120,888.72 = 51,776.64/x
  3. Step 3: Cross multiply
    87,589.44x = 120,888.72 × 51,776.64
  4. Step 4: Simplify right side
    87,589.44x = 6,259,211,735.50
  5. Step 5: Solve for x
    x = 6,259,211,735.50/87,589.44
  6. Step 6: Final answer
    x = 71,460.80

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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.