Home / 82,739.97-124,117.35-32,137.80

Finding the Fourth Proportional to 82,739.97, 124,117.35 and 32,137.80

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Solution

The fourth proportional to 82,739.97, 124,117.35 and 32,137.80 is: 48,209.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,739.97 : 124,117.35 = 32,137.80 : x
  2. Step 2: Convert to fraction form
    82,739.97/124,117.35 = 32,137.80/x
  3. Step 3: Cross multiply
    82,739.97x = 124,117.35 × 32,137.80
  4. Step 4: Simplify right side
    82,739.97x = 3,988,858,570.83
  5. Step 5: Solve for x
    x = 3,988,858,570.83/82,739.97
  6. Step 6: Final answer
    x = 48,209.57

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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.