Home / 215,788.40-323,721.51-66,025.88

Finding the Fourth Proportional to 215,788.40, 323,721.51 and 66,025.88

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Solution

The fourth proportional to 215,788.40, 323,721.51 and 66,025.88 is: 99,050.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,788.40 : 323,721.51 = 66,025.88 : x
  2. Step 2: Convert to fraction form
    215,788.40/323,721.51 = 66,025.88/x
  3. Step 3: Cross multiply
    215,788.40x = 323,721.51 × 66,025.88
  4. Step 4: Simplify right side
    215,788.40x = 21,373,997,572.68
  5. Step 5: Solve for x
    x = 21,373,997,572.68/215,788.40
  6. Step 6: Final answer
    x = 99,050.73

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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.