Home / 87,002.65-120,057.97-51,185.74

Finding the Fourth Proportional to 87,002.65, 120,057.97 and 51,185.74

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Solution

The fourth proportional to 87,002.65, 120,057.97 and 51,185.74 is: 70,632.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,002.65 : 120,057.97 = 51,185.74 : x
  2. Step 2: Convert to fraction form
    87,002.65/120,057.97 = 51,185.74/x
  3. Step 3: Cross multiply
    87,002.65x = 120,057.97 × 51,185.74
  4. Step 4: Simplify right side
    87,002.65x = 6,145,256,037.35
  5. Step 5: Solve for x
    x = 6,145,256,037.35/87,002.65
  6. Step 6: Final answer
    x = 70,632.98

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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.