Home / 65,787.29-98,693.08-20,819.97

Finding the Fourth Proportional to 65,787.29, 98,693.08 and 20,819.97

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Solution

The fourth proportional to 65,787.29, 98,693.08 and 20,819.97 is: 31,233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,787.29 : 98,693.08 = 20,819.97 : x
  2. Step 2: Convert to fraction form
    65,787.29/98,693.08 = 20,819.97/x
  3. Step 3: Cross multiply
    65,787.29x = 98,693.08 × 20,819.97
  4. Step 4: Simplify right side
    65,787.29x = 2,054,787,029.87
  5. Step 5: Solve for x
    x = 2,054,787,029.87/65,787.29
  6. Step 6: Final answer
    x = 31,233.80

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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.