Home / 87,989.58-131,910.21-59,830.74

Finding the Fourth Proportional to 87,989.58, 131,910.21 and 59,830.74

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Solution

The fourth proportional to 87,989.58, 131,910.21 and 59,830.74 is: 89,695.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,989.58 : 131,910.21 = 59,830.74 : x
  2. Step 2: Convert to fraction form
    87,989.58/131,910.21 = 59,830.74/x
  3. Step 3: Cross multiply
    87,989.58x = 131,910.21 × 59,830.74
  4. Step 4: Simplify right side
    87,989.58x = 7,892,285,477.86
  5. Step 5: Solve for x
    x = 7,892,285,477.86/87,989.58
  6. Step 6: Final answer
    x = 89,695.68

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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.