Home / 81,645.85-112,683.57-49,833.24

Finding the Fourth Proportional to 81,645.85, 112,683.57 and 49,833.24

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Solution

The fourth proportional to 81,645.85, 112,683.57 and 49,833.24 is: 68,777.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,645.85 : 112,683.57 = 49,833.24 : x
  2. Step 2: Convert to fraction form
    81,645.85/112,683.57 = 49,833.24/x
  3. Step 3: Cross multiply
    81,645.85x = 112,683.57 × 49,833.24
  4. Step 4: Simplify right side
    81,645.85x = 5,615,387,387.87
  5. Step 5: Solve for x
    x = 5,615,387,387.87/81,645.85
  6. Step 6: Final answer
    x = 68,777.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.