Home / 74,039.13-102,171.38-41,783.92

Finding the Fourth Proportional to 74,039.13, 102,171.38 and 41,783.92

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Solution

The fourth proportional to 74,039.13, 102,171.38 and 41,783.92 is: 57,660.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,039.13 : 102,171.38 = 41,783.92 : x
  2. Step 2: Convert to fraction form
    74,039.13/102,171.38 = 41,783.92/x
  3. Step 3: Cross multiply
    74,039.13x = 102,171.38 × 41,783.92
  4. Step 4: Simplify right side
    74,039.13x = 4,269,120,303.86
  5. Step 5: Solve for x
    x = 4,269,120,303.86/74,039.13
  6. Step 6: Final answer
    x = 57,660.33

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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.