Home / 81,764.43-112,825.88-49,057.11

Finding the Fourth Proportional to 81,764.43, 112,825.88 and 49,057.11

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Solution

The fourth proportional to 81,764.43, 112,825.88 and 49,057.11 is: 67,693.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,764.43 : 112,825.88 = 49,057.11 : x
  2. Step 2: Convert to fraction form
    81,764.43/112,825.88 = 49,057.11/x
  3. Step 3: Cross multiply
    81,764.43x = 112,825.88 × 49,057.11
  4. Step 4: Simplify right side
    81,764.43x = 5,534,911,606.01
  5. Step 5: Solve for x
    x = 5,534,911,606.01/81,764.43
  6. Step 6: Final answer
    x = 67,693.39

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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.