Home / 80,096.54-120,685.49-66,362.18

Finding the Fourth Proportional to 80,096.54, 120,685.49 and 66,362.18

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Solution

The fourth proportional to 80,096.54, 120,685.49 and 66,362.18 is: 99,991.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,096.54 : 120,685.49 = 66,362.18 : x
  2. Step 2: Convert to fraction form
    80,096.54/120,685.49 = 66,362.18/x
  3. Step 3: Cross multiply
    80,096.54x = 120,685.49 × 66,362.18
  4. Step 4: Simplify right side
    80,096.54x = 8,008,952,210.77
  5. Step 5: Solve for x
    x = 8,008,952,210.77/80,096.54
  6. Step 6: Final answer
    x = 99,991.24

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.