Home / 81,109.85-121,676.40-24,954.66

Finding the Fourth Proportional to 81,109.85, 121,676.40 and 24,954.66

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Solution

The fourth proportional to 81,109.85, 121,676.40 and 24,954.66 is: 37,435.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,109.85 : 121,676.40 = 24,954.66 : x
  2. Step 2: Convert to fraction form
    81,109.85/121,676.40 = 24,954.66/x
  3. Step 3: Cross multiply
    81,109.85x = 121,676.40 × 24,954.66
  4. Step 4: Simplify right side
    81,109.85x = 3,036,393,192.02
  5. Step 5: Solve for x
    x = 3,036,393,192.02/81,109.85
  6. Step 6: Final answer
    x = 37,435.57

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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.