Home / 87,091.32-120,157.66-50,784.58

Finding the Fourth Proportional to 87,091.32, 120,157.66 and 50,784.58

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Solution

The fourth proportional to 87,091.32, 120,157.66 and 50,784.58 is: 70,066.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,091.32 : 120,157.66 = 50,784.58 : x
  2. Step 2: Convert to fraction form
    87,091.32/120,157.66 = 50,784.58/x
  3. Step 3: Cross multiply
    87,091.32x = 120,157.66 × 50,784.58
  4. Step 4: Simplify right side
    87,091.32x = 6,102,156,296.88
  5. Step 5: Solve for x
    x = 6,102,156,296.88/87,091.32
  6. Step 6: Final answer
    x = 70,066.18

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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.