Home / 51,202.76-76,838.96-31,420.94

Finding the Fourth Proportional to 51,202.76, 76,838.96 and 31,420.94

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Solution

The fourth proportional to 51,202.76, 76,838.96 and 31,420.94 is: 47,152.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,202.76 : 76,838.96 = 31,420.94 : x
  2. Step 2: Convert to fraction form
    51,202.76/76,838.96 = 31,420.94/x
  3. Step 3: Cross multiply
    51,202.76x = 76,838.96 × 31,420.94
  4. Step 4: Simplify right side
    51,202.76x = 2,414,352,046.18
  5. Step 5: Solve for x
    x = 2,414,352,046.18/51,202.76
  6. Step 6: Final answer
    x = 47,152.78

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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.