Home / 66,720.24-100,084.68-22,345.20

Finding the Fourth Proportional to 66,720.24, 100,084.68 and 22,345.20

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Solution

The fourth proportional to 66,720.24, 100,084.68 and 22,345.20 is: 33,519.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,720.24 : 100,084.68 = 22,345.20 : x
  2. Step 2: Convert to fraction form
    66,720.24/100,084.68 = 22,345.20/x
  3. Step 3: Cross multiply
    66,720.24x = 100,084.68 × 22,345.20
  4. Step 4: Simplify right side
    66,720.24x = 2,236,412,191.54
  5. Step 5: Solve for x
    x = 2,236,412,191.54/66,720.24
  6. Step 6: Final answer
    x = 33,519.25

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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.