Home / 77,091.11-106,403.49-50,186.75

Finding the Fourth Proportional to 77,091.11, 106,403.49 and 50,186.75

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Solution

The fourth proportional to 77,091.11, 106,403.49 and 50,186.75 is: 69,269.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,091.11 : 106,403.49 = 50,186.75 : x
  2. Step 2: Convert to fraction form
    77,091.11/106,403.49 = 50,186.75/x
  3. Step 3: Cross multiply
    77,091.11x = 106,403.49 × 50,186.75
  4. Step 4: Simplify right side
    77,091.11x = 5,340,044,819.74
  5. Step 5: Solve for x
    x = 5,340,044,819.74/77,091.11
  6. Step 6: Final answer
    x = 69,269.27

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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.