Home / 76,141.29-114,253.26-31,771.92

Finding the Fourth Proportional to 76,141.29, 114,253.26 and 31,771.92

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Solution

The fourth proportional to 76,141.29, 114,253.26 and 31,771.92 is: 47,675.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,141.29 : 114,253.26 = 31,771.92 : x
  2. Step 2: Convert to fraction form
    76,141.29/114,253.26 = 31,771.92/x
  3. Step 3: Cross multiply
    76,141.29x = 114,253.26 × 31,771.92
  4. Step 4: Simplify right side
    76,141.29x = 3,630,045,436.46
  5. Step 5: Solve for x
    x = 3,630,045,436.46/76,141.29
  6. Step 6: Final answer
    x = 47,675.12

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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.