Home / 87,700.89-131,540.40-51,698.01

Finding the Fourth Proportional to 87,700.89, 131,540.40 and 51,698.01

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Solution

The fourth proportional to 87,700.89, 131,540.40 and 51,698.01 is: 77,540.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,700.89 : 131,540.40 = 51,698.01 : x
  2. Step 2: Convert to fraction form
    87,700.89/131,540.40 = 51,698.01/x
  3. Step 3: Cross multiply
    87,700.89x = 131,540.40 × 51,698.01
  4. Step 4: Simplify right side
    87,700.89x = 6,800,376,914.60
  5. Step 5: Solve for x
    x = 6,800,376,914.60/87,700.89
  6. Step 6: Final answer
    x = 77,540.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.