Home / 45,128.22-67,736.07-21,771.06

Finding the Fourth Proportional to 45,128.22, 67,736.07 and 21,771.06

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Solution

The fourth proportional to 45,128.22, 67,736.07 and 21,771.06 is: 32,677.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,128.22 : 67,736.07 = 21,771.06 : x
  2. Step 2: Convert to fraction form
    45,128.22/67,736.07 = 21,771.06/x
  3. Step 3: Cross multiply
    45,128.22x = 67,736.07 × 21,771.06
  4. Step 4: Simplify right side
    45,128.22x = 1,474,686,044.13
  5. Step 5: Solve for x
    x = 1,474,686,044.13/45,128.22
  6. Step 6: Final answer
    x = 32,677.69

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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.