Home / 51,787.71-71,456.31-30,273.28

Finding the Fourth Proportional to 51,787.71, 71,456.31 and 30,273.28

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Solution

The fourth proportional to 51,787.71, 71,456.31 and 30,273.28 is: 41,770.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,787.71 : 71,456.31 = 30,273.28 : x
  2. Step 2: Convert to fraction form
    51,787.71/71,456.31 = 30,273.28/x
  3. Step 3: Cross multiply
    51,787.71x = 71,456.31 × 30,273.28
  4. Step 4: Simplify right side
    51,787.71x = 2,163,216,701.76
  5. Step 5: Solve for x
    x = 2,163,216,701.76/51,787.71
  6. Step 6: Final answer
    x = 41,770.85

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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.