Home / 51,901.78-71,629.76-31,771.96

Finding the Fourth Proportional to 51,901.78, 71,629.76 and 31,771.96

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Solution

The fourth proportional to 51,901.78, 71,629.76 and 31,771.96 is: 43,848.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,901.78 : 71,629.76 = 31,771.96 : x
  2. Step 2: Convert to fraction form
    51,901.78/71,629.76 = 31,771.96/x
  3. Step 3: Cross multiply
    51,901.78x = 71,629.76 × 31,771.96
  4. Step 4: Simplify right side
    51,901.78x = 2,275,817,869.53
  5. Step 5: Solve for x
    x = 2,275,817,869.53/51,901.78
  6. Step 6: Final answer
    x = 43,848.55

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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.