Home / 83,211.64-114,840.11-49,231.05

Finding the Fourth Proportional to 83,211.64, 114,840.11 and 49,231.05

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Solution

The fourth proportional to 83,211.64, 114,840.11 and 49,231.05 is: 67,943.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,211.64 : 114,840.11 = 49,231.05 : x
  2. Step 2: Convert to fraction form
    83,211.64/114,840.11 = 49,231.05/x
  3. Step 3: Cross multiply
    83,211.64x = 114,840.11 × 49,231.05
  4. Step 4: Simplify right side
    83,211.64x = 5,653,699,197.42
  5. Step 5: Solve for x
    x = 5,653,699,197.42/83,211.64
  6. Step 6: Final answer
    x = 67,943.61

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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.