Home / 82,428.11-113,748.34-45,635.96

Finding the Fourth Proportional to 82,428.11, 113,748.34 and 45,635.96

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Solution

The fourth proportional to 82,428.11, 113,748.34 and 45,635.96 is: 62,976.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,428.11 : 113,748.34 = 45,635.96 : x
  2. Step 2: Convert to fraction form
    82,428.11/113,748.34 = 45,635.96/x
  3. Step 3: Cross multiply
    82,428.11x = 113,748.34 × 45,635.96
  4. Step 4: Simplify right side
    82,428.11x = 5,191,015,041.47
  5. Step 5: Solve for x
    x = 5,191,015,041.47/82,428.11
  6. Step 6: Final answer
    x = 62,976.27

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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.