Home / 76,957.19-115,475.73-58,231.61

Finding the Fourth Proportional to 76,957.19, 115,475.73 and 58,231.61

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Solution

The fourth proportional to 76,957.19, 115,475.73 and 58,231.61 is: 87,377.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,957.19 : 115,475.73 = 58,231.61 : x
  2. Step 2: Convert to fraction form
    76,957.19/115,475.73 = 58,231.61/x
  3. Step 3: Cross multiply
    76,957.19x = 115,475.73 × 58,231.61
  4. Step 4: Simplify right side
    76,957.19x = 6,724,337,311.11
  5. Step 5: Solve for x
    x = 6,724,337,311.11/76,957.19
  6. Step 6: Final answer
    x = 87,377.64

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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.