Home / 81,625.32-122,429.34-26,217

Finding the Fourth Proportional to 81,625.32, 122,429.34 and 26,217

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Solution

The fourth proportional to 81,625.32, 122,429.34 and 26,217 is: 39,322.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,625.32 : 122,429.34 = 26,217 : x
  2. Step 2: Convert to fraction form
    81,625.32/122,429.34 = 26,217/x
  3. Step 3: Cross multiply
    81,625.32x = 122,429.34 × 26,217
  4. Step 4: Simplify right side
    81,625.32x = 3,209,730,006.78
  5. Step 5: Solve for x
    x = 3,209,730,006.78/81,625.32
  6. Step 6: Final answer
    x = 39,322.72

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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.