Home / 81,083.26-111,906.11-45,275.59

Finding the Fourth Proportional to 81,083.26, 111,906.11 and 45,275.59

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Solution

The fourth proportional to 81,083.26, 111,906.11 and 45,275.59 is: 62,486.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,083.26 : 111,906.11 = 45,275.59 : x
  2. Step 2: Convert to fraction form
    81,083.26/111,906.11 = 45,275.59/x
  3. Step 3: Cross multiply
    81,083.26x = 111,906.11 × 45,275.59
  4. Step 4: Simplify right side
    81,083.26x = 5,066,614,368.95
  5. Step 5: Solve for x
    x = 5,066,614,368.95/81,083.26
  6. Step 6: Final answer
    x = 62,486.57

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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.