Home / 109,627.20-164,340-39,489.36

Finding the Fourth Proportional to 109,627.20, 164,340 and 39,489.36

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Solution

The fourth proportional to 109,627.20, 164,340 and 39,489.36 is: 59,197.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,627.20 : 164,340 = 39,489.36 : x
  2. Step 2: Convert to fraction form
    109,627.20/164,340 = 39,489.36/x
  3. Step 3: Cross multiply
    109,627.20x = 164,340 × 39,489.36
  4. Step 4: Simplify right side
    109,627.20x = 6,489,681,422.40
  5. Step 5: Solve for x
    x = 6,489,681,422.40/109,627.20
  6. Step 6: Final answer
    x = 59,197.73

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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.