Home / 49,428.22-74,141.66-11,988.64

Finding the Fourth Proportional to 49,428.22, 74,141.66 and 11,988.64

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Solution

The fourth proportional to 49,428.22, 74,141.66 and 11,988.64 is: 17,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,428.22 : 74,141.66 = 11,988.64 : x
  2. Step 2: Convert to fraction form
    49,428.22/74,141.66 = 11,988.64/x
  3. Step 3: Cross multiply
    49,428.22x = 74,141.66 × 11,988.64
  4. Step 4: Simplify right side
    49,428.22x = 888,857,670.74
  5. Step 5: Solve for x
    x = 888,857,670.74/49,428.22
  6. Step 6: Final answer
    x = 17,982.80

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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.