Home / 215,786.10-323,685.30-66,023.07

Finding the Fourth Proportional to 215,786.10, 323,685.30 and 66,023.07

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Solution

The fourth proportional to 215,786.10, 323,685.30 and 66,023.07 is: 99,036.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,786.10 : 323,685.30 = 66,023.07 : x
  2. Step 2: Convert to fraction form
    215,786.10/323,685.30 = 66,023.07/x
  3. Step 3: Cross multiply
    215,786.10x = 323,685.30 × 66,023.07
  4. Step 4: Simplify right side
    215,786.10x = 21,370,697,219.87
  5. Step 5: Solve for x
    x = 21,370,697,219.87/215,786.10
  6. Step 6: Final answer
    x = 99,036.49

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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.