Home / 87,968.88-131,953.55-61,790.49

Finding the Fourth Proportional to 87,968.88, 131,953.55 and 61,790.49

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Solution

The fourth proportional to 87,968.88, 131,953.55 and 61,790.49 is: 92,685.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,968.88 : 131,953.55 = 61,790.49 : x
  2. Step 2: Convert to fraction form
    87,968.88/131,953.55 = 61,790.49/x
  3. Step 3: Cross multiply
    87,968.88x = 131,953.55 × 61,790.49
  4. Step 4: Simplify right side
    87,968.88x = 8,153,474,202.79
  5. Step 5: Solve for x
    x = 8,153,474,202.79/87,968.88
  6. Step 6: Final answer
    x = 92,685.89

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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.