Home / 87,218.36-120,361.74-53,212.76

Finding the Fourth Proportional to 87,218.36, 120,361.74 and 53,212.76

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Solution

The fourth proportional to 87,218.36, 120,361.74 and 53,212.76 is: 73,433.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,218.36 : 120,361.74 = 53,212.76 : x
  2. Step 2: Convert to fraction form
    87,218.36/120,361.74 = 53,212.76/x
  3. Step 3: Cross multiply
    87,218.36x = 120,361.74 × 53,212.76
  4. Step 4: Simplify right side
    87,218.36x = 6,404,780,383.80
  5. Step 5: Solve for x
    x = 6,404,780,383.80/87,218.36
  6. Step 6: Final answer
    x = 73,433.85

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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.