Home / 81,966.20-113,119.18-45,670.66

Finding the Fourth Proportional to 81,966.20, 113,119.18 and 45,670.66

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Solution

The fourth proportional to 81,966.20, 113,119.18 and 45,670.66 is: 63,028.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,966.20 : 113,119.18 = 45,670.66 : x
  2. Step 2: Convert to fraction form
    81,966.20/113,119.18 = 45,670.66/x
  3. Step 3: Cross multiply
    81,966.20x = 113,119.18 × 45,670.66
  4. Step 4: Simplify right side
    81,966.20x = 5,166,227,212.28
  5. Step 5: Solve for x
    x = 5,166,227,212.28/81,966.20
  6. Step 6: Final answer
    x = 63,028.75

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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.