Home / 87,494.58-120,700.53-57,266.60

Finding the Fourth Proportional to 87,494.58, 120,700.53 and 57,266.60

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Solution

The fourth proportional to 87,494.58, 120,700.53 and 57,266.60 is: 79,000.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,494.58 : 120,700.53 = 57,266.60 : x
  2. Step 2: Convert to fraction form
    87,494.58/120,700.53 = 57,266.60/x
  3. Step 3: Cross multiply
    87,494.58x = 120,700.53 × 57,266.60
  4. Step 4: Simplify right side
    87,494.58x = 6,912,108,367.80
  5. Step 5: Solve for x
    x = 6,912,108,367.80/87,494.58
  6. Step 6: Final answer
    x = 79,000.42

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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.