Home / 81,212.27-112,086.77-47,240.45

Finding the Fourth Proportional to 81,212.27, 112,086.77 and 47,240.45

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Solution

The fourth proportional to 81,212.27, 112,086.77 and 47,240.45 is: 65,199.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,212.27 : 112,086.77 = 47,240.45 : x
  2. Step 2: Convert to fraction form
    81,212.27/112,086.77 = 47,240.45/x
  3. Step 3: Cross multiply
    81,212.27x = 112,086.77 × 47,240.45
  4. Step 4: Simplify right side
    81,212.27x = 5,295,029,077.54
  5. Step 5: Solve for x
    x = 5,295,029,077.54/81,212.27
  6. Step 6: Final answer
    x = 65,199.87

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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.