Home / 77,942.43-107,535.06-47,696.22

Finding the Fourth Proportional to 77,942.43, 107,535.06 and 47,696.22

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Solution

The fourth proportional to 77,942.43, 107,535.06 and 47,696.22 is: 65,805.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,942.43 : 107,535.06 = 47,696.22 : x
  2. Step 2: Convert to fraction form
    77,942.43/107,535.06 = 47,696.22/x
  3. Step 3: Cross multiply
    77,942.43x = 107,535.06 × 47,696.22
  4. Step 4: Simplify right side
    77,942.43x = 5,129,015,879.47
  5. Step 5: Solve for x
    x = 5,129,015,879.47/77,942.43
  6. Step 6: Final answer
    x = 65,805.18

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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.