Home / 76,118.17-105,143.48-58,431.73

Finding the Fourth Proportional to 76,118.17, 105,143.48 and 58,431.73

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Solution

The fourth proportional to 76,118.17, 105,143.48 and 58,431.73 is: 80,712.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,118.17 : 105,143.48 = 58,431.73 : x
  2. Step 2: Convert to fraction form
    76,118.17/105,143.48 = 58,431.73/x
  3. Step 3: Cross multiply
    76,118.17x = 105,143.48 × 58,431.73
  4. Step 4: Simplify right side
    76,118.17x = 6,143,715,434.62
  5. Step 5: Solve for x
    x = 6,143,715,434.62/76,118.17
  6. Step 6: Final answer
    x = 80,712.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.