Home / 87,297.30-120,485.97-51,485.22

Finding the Fourth Proportional to 87,297.30, 120,485.97 and 51,485.22

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Solution

The fourth proportional to 87,297.30, 120,485.97 and 51,485.22 is: 71,058.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,297.30 : 120,485.97 = 51,485.22 : x
  2. Step 2: Convert to fraction form
    87,297.30/120,485.97 = 51,485.22/x
  3. Step 3: Cross multiply
    87,297.30x = 120,485.97 × 51,485.22
  4. Step 4: Simplify right side
    87,297.30x = 6,203,246,672.36
  5. Step 5: Solve for x
    x = 6,203,246,672.36/87,297.30
  6. Step 6: Final answer
    x = 71,058.86

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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.