Home / 87,688.20-131,483.70-37,759.80

Finding the Fourth Proportional to 87,688.20, 131,483.70 and 37,759.80

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Solution

The fourth proportional to 87,688.20, 131,483.70 and 37,759.80 is: 56,618.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,688.20 : 131,483.70 = 37,759.80 : x
  2. Step 2: Convert to fraction form
    87,688.20/131,483.70 = 37,759.80/x
  3. Step 3: Cross multiply
    87,688.20x = 131,483.70 × 37,759.80
  4. Step 4: Simplify right side
    87,688.20x = 4,964,798,215.26
  5. Step 5: Solve for x
    x = 4,964,798,215.26/87,688.20
  6. Step 6: Final answer
    x = 56,618.77

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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.