Home / 87,546.15-120,808.73-51,739.49

Finding the Fourth Proportional to 87,546.15, 120,808.73 and 51,739.49

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Solution

The fourth proportional to 87,546.15, 120,808.73 and 51,739.49 is: 71,397.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,546.15 : 120,808.73 = 51,739.49 : x
  2. Step 2: Convert to fraction form
    87,546.15/120,808.73 = 51,739.49/x
  3. Step 3: Cross multiply
    87,546.15x = 120,808.73 × 51,739.49
  4. Step 4: Simplify right side
    87,546.15x = 6,250,582,509.12
  5. Step 5: Solve for x
    x = 6,250,582,509.12/87,546.15
  6. Step 6: Final answer
    x = 71,397.57

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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.