Home / 65,105.31-97,649.33-18,361.95

Finding the Fourth Proportional to 65,105.31, 97,649.33 and 18,361.95

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Solution

The fourth proportional to 65,105.31, 97,649.33 and 18,361.95 is: 27,540.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,105.31 : 97,649.33 = 18,361.95 : x
  2. Step 2: Convert to fraction form
    65,105.31/97,649.33 = 18,361.95/x
  3. Step 3: Cross multiply
    65,105.31x = 97,649.33 × 18,361.95
  4. Step 4: Simplify right side
    65,105.31x = 1,793,032,023.18
  5. Step 5: Solve for x
    x = 1,793,032,023.18/65,105.31
  6. Step 6: Final answer
    x = 27,540.49

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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.