Home / 86,009.40-118,672.20-50,178.96

Finding the Fourth Proportional to 86,009.40, 118,672.20 and 50,178.96

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Solution

The fourth proportional to 86,009.40, 118,672.20 and 50,178.96 is: 69,234.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,009.40 : 118,672.20 = 50,178.96 : x
  2. Step 2: Convert to fraction form
    86,009.40/118,672.20 = 50,178.96/x
  3. Step 3: Cross multiply
    86,009.40x = 118,672.20 × 50,178.96
  4. Step 4: Simplify right side
    86,009.40x = 5,954,847,576.91
  5. Step 5: Solve for x
    x = 5,954,847,576.91/86,009.40
  6. Step 6: Final answer
    x = 69,234.85

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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.