Home / 81,839.56-113,002.14-63,903.46

Finding the Fourth Proportional to 81,839.56, 113,002.14 and 63,903.46

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Solution

The fourth proportional to 81,839.56, 113,002.14 and 63,903.46 is: 88,236.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,839.56 : 113,002.14 = 63,903.46 : x
  2. Step 2: Convert to fraction form
    81,839.56/113,002.14 = 63,903.46/x
  3. Step 3: Cross multiply
    81,839.56x = 113,002.14 × 63,903.46
  4. Step 4: Simplify right side
    81,839.56x = 7,221,227,733.40
  5. Step 5: Solve for x
    x = 7,221,227,733.40/81,839.56
  6. Step 6: Final answer
    x = 88,236.39

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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.