Home / 53,787.06-80,680.20-13,805.82

Finding the Fourth Proportional to 53,787.06, 80,680.20 and 13,805.82

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Solution

The fourth proportional to 53,787.06, 80,680.20 and 13,805.82 is: 20,708.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,787.06 : 80,680.20 = 13,805.82 : x
  2. Step 2: Convert to fraction form
    53,787.06/80,680.20 = 13,805.82/x
  3. Step 3: Cross multiply
    53,787.06x = 80,680.20 × 13,805.82
  4. Step 4: Simplify right side
    53,787.06x = 1,113,856,318.76
  5. Step 5: Solve for x
    x = 1,113,856,318.76/53,787.06
  6. Step 6: Final answer
    x = 20,708.63

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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.