Home / 83,787.58-125,680.29-20,608.24

Finding the Fourth Proportional to 83,787.58, 125,680.29 and 20,608.24

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Solution

The fourth proportional to 83,787.58, 125,680.29 and 20,608.24 is: 30,912.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,787.58 : 125,680.29 = 20,608.24 : x
  2. Step 2: Convert to fraction form
    83,787.58/125,680.29 = 20,608.24/x
  3. Step 3: Cross multiply
    83,787.58x = 125,680.29 × 20,608.24
  4. Step 4: Simplify right side
    83,787.58x = 2,590,049,579.59
  5. Step 5: Solve for x
    x = 2,590,049,579.59/83,787.58
  6. Step 6: Final answer
    x = 30,912.09

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1.5x scale

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.