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Finding the Fourth Proportional to 65,668.56, 90,622.44 and 35,860.56

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Solution

The fourth proportional to 65,668.56, 90,622.44 and 35,860.56 is: 49,487.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,668.56 : 90,622.44 = 35,860.56 : x
  2. Step 2: Convert to fraction form
    65,668.56/90,622.44 = 35,860.56/x
  3. Step 3: Cross multiply
    65,668.56x = 90,622.44 × 35,860.56
  4. Step 4: Simplify right side
    65,668.56x = 3,249,771,446.97
  5. Step 5: Solve for x
    x = 3,249,771,446.97/65,668.56
  6. Step 6: Final answer
    x = 49,487.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.