Home / 71,814.64-99,101.88-39,982.48

Finding the Fourth Proportional to 71,814.64, 99,101.88 and 39,982.48

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Solution

The fourth proportional to 71,814.64, 99,101.88 and 39,982.48 is: 55,174.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,814.64 : 99,101.88 = 39,982.48 : x
  2. Step 2: Convert to fraction form
    71,814.64/99,101.88 = 39,982.48/x
  3. Step 3: Cross multiply
    71,814.64x = 99,101.88 × 39,982.48
  4. Step 4: Simplify right side
    71,814.64x = 3,962,338,935.06
  5. Step 5: Solve for x
    x = 3,962,338,935.06/71,814.64
  6. Step 6: Final answer
    x = 55,174.53

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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.