Home / 76,868.70-115,248.56-34,150.65

Finding the Fourth Proportional to 76,868.70, 115,248.56 and 34,150.65

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Solution

The fourth proportional to 76,868.70, 115,248.56 and 34,150.65 is: 51,201.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,868.70 : 115,248.56 = 34,150.65 : x
  2. Step 2: Convert to fraction form
    76,868.70/115,248.56 = 34,150.65/x
  3. Step 3: Cross multiply
    76,868.70x = 115,248.56 × 34,150.65
  4. Step 4: Simplify right side
    76,868.70x = 3,935,812,632.63
  5. Step 5: Solve for x
    x = 3,935,812,632.63/76,868.70
  6. Step 6: Final answer
    x = 51,201.76

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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.