Home / 77,997.39-116,340.75-70,813.77

Finding the Fourth Proportional to 77,997.39, 116,340.75 and 70,813.77

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Solution

The fourth proportional to 77,997.39, 116,340.75 and 70,813.77 is: 105,625.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,997.39 : 116,340.75 = 70,813.77 : x
  2. Step 2: Convert to fraction form
    77,997.39/116,340.75 = 70,813.77/x
  3. Step 3: Cross multiply
    77,997.39x = 116,340.75 × 70,813.77
  4. Step 4: Simplify right side
    77,997.39x = 8,238,527,112.13
  5. Step 5: Solve for x
    x = 8,238,527,112.13/77,997.39
  6. Step 6: Final answer
    x = 105,625.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.