Home / 81,069.36-121,604.40-24,909

Finding the Fourth Proportional to 81,069.36, 121,604.40 and 24,909

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Solution

The fourth proportional to 81,069.36, 121,604.40 and 24,909 is: 37,363.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,069.36 : 121,604.40 = 24,909 : x
  2. Step 2: Convert to fraction form
    81,069.36/121,604.40 = 24,909/x
  3. Step 3: Cross multiply
    81,069.36x = 121,604.40 × 24,909
  4. Step 4: Simplify right side
    81,069.36x = 3,029,043,999.60
  5. Step 5: Solve for x
    x = 3,029,043,999.60/81,069.36
  6. Step 6: Final answer
    x = 37,363.61

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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.