Home / 67,077.64-100,665.18-54,086.92

Finding the Fourth Proportional to 67,077.64, 100,665.18 and 54,086.92

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Solution

The fourth proportional to 67,077.64, 100,665.18 and 54,086.92 is: 81,169.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,077.64 : 100,665.18 = 54,086.92 : x
  2. Step 2: Convert to fraction form
    67,077.64/100,665.18 = 54,086.92/x
  3. Step 3: Cross multiply
    67,077.64x = 100,665.18 × 54,086.92
  4. Step 4: Simplify right side
    67,077.64x = 5,444,669,537.45
  5. Step 5: Solve for x
    x = 5,444,669,537.45/67,077.64
  6. Step 6: Final answer
    x = 81,169.66

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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.