Home / 76,083.18-114,164.57-31,137.90

Finding the Fourth Proportional to 76,083.18, 114,164.57 and 31,137.90

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Solution

The fourth proportional to 76,083.18, 114,164.57 and 31,137.90 is: 46,723.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,083.18 : 114,164.57 = 31,137.90 : x
  2. Step 2: Convert to fraction form
    76,083.18/114,164.57 = 31,137.90/x
  3. Step 3: Cross multiply
    76,083.18x = 114,164.57 × 31,137.90
  4. Step 4: Simplify right side
    76,083.18x = 3,554,844,964.20
  5. Step 5: Solve for x
    x = 3,554,844,964.20/76,083.18
  6. Step 6: Final answer
    x = 46,723.14

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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.