Home / 89,680.50-123,759.09-51,976.62

Finding the Fourth Proportional to 89,680.50, 123,759.09 and 51,976.62

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Solution

The fourth proportional to 89,680.50, 123,759.09 and 51,976.62 is: 71,727.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,680.50 : 123,759.09 = 51,976.62 : x
  2. Step 2: Convert to fraction form
    89,680.50/123,759.09 = 51,976.62/x
  3. Step 3: Cross multiply
    89,680.50x = 123,759.09 × 51,976.62
  4. Step 4: Simplify right side
    89,680.50x = 6,432,579,192.48
  5. Step 5: Solve for x
    x = 6,432,579,192.48/89,680.50
  6. Step 6: Final answer
    x = 71,727.74

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1.5x scale

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.