Home / 77,890.97-116,789.74-35,718.22

Finding the Fourth Proportional to 77,890.97, 116,789.74 and 35,718.22

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Solution

The fourth proportional to 77,890.97, 116,789.74 and 35,718.22 is: 53,555.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,890.97 : 116,789.74 = 35,718.22 : x
  2. Step 2: Convert to fraction form
    77,890.97/116,789.74 = 35,718.22/x
  3. Step 3: Cross multiply
    77,890.97x = 116,789.74 × 35,718.22
  4. Step 4: Simplify right side
    77,890.97x = 4,171,521,627.06
  5. Step 5: Solve for x
    x = 4,171,521,627.06/77,890.97
  6. Step 6: Final answer
    x = 53,555.91

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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.