Home / 87,970.41-131,955.66-21,410.55

Finding the Fourth Proportional to 87,970.41, 131,955.66 and 21,410.55

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Solution

The fourth proportional to 87,970.41, 131,955.66 and 21,410.55 is: 32,115.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,970.41 : 131,955.66 = 21,410.55 : x
  2. Step 2: Convert to fraction form
    87,970.41/131,955.66 = 21,410.55/x
  3. Step 3: Cross multiply
    87,970.41x = 131,955.66 × 21,410.55
  4. Step 4: Simplify right side
    87,970.41x = 2,825,243,256.21
  5. Step 5: Solve for x
    x = 2,825,243,256.21/87,970.41
  6. Step 6: Final answer
    x = 32,115.84

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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.