Home / 281,749.40-422,693.25-82,071.64

Finding the Fourth Proportional to 281,749.40, 422,693.25 and 82,071.64

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Solution

The fourth proportional to 281,749.40, 422,693.25 and 82,071.64 is: 123,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,749.40 : 422,693.25 = 82,071.64 : x
  2. Step 2: Convert to fraction form
    281,749.40/422,693.25 = 82,071.64/x
  3. Step 3: Cross multiply
    281,749.40x = 422,693.25 × 82,071.64
  4. Step 4: Simplify right side
    281,749.40x = 34,691,128,244.43
  5. Step 5: Solve for x
    x = 34,691,128,244.43/281,749.40
  6. Step 6: Final answer
    x = 123,127.60

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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.