Home / 81,241.99-121,862.61-22,077.56

Finding the Fourth Proportional to 81,241.99, 121,862.61 and 22,077.56

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Solution

The fourth proportional to 81,241.99, 121,862.61 and 22,077.56 is: 33,116.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,241.99 : 121,862.61 = 22,077.56 : x
  2. Step 2: Convert to fraction form
    81,241.99/121,862.61 = 22,077.56/x
  3. Step 3: Cross multiply
    81,241.99x = 121,862.61 × 22,077.56
  4. Step 4: Simplify right side
    81,241.99x = 2,690,429,388.69
  5. Step 5: Solve for x
    x = 2,690,429,388.69/81,241.99
  6. Step 6: Final answer
    x = 33,116.24

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1.5x scale

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.