Home / 86,311.28-119,081-50,475.94

Finding the Fourth Proportional to 86,311.28, 119,081 and 50,475.94

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Solution

The fourth proportional to 86,311.28, 119,081 and 50,475.94 is: 69,640.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,311.28 : 119,081 = 50,475.94 : x
  2. Step 2: Convert to fraction form
    86,311.28/119,081 = 50,475.94/x
  3. Step 3: Cross multiply
    86,311.28x = 119,081 × 50,475.94
  4. Step 4: Simplify right side
    86,311.28x = 6,010,725,411.14
  5. Step 5: Solve for x
    x = 6,010,725,411.14/86,311.28
  6. Step 6: Final answer
    x = 69,640.09

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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.