Home / 78,738.18-108,654.57-44,742.12

Finding the Fourth Proportional to 78,738.18, 108,654.57 and 44,742.12

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Solution

The fourth proportional to 78,738.18, 108,654.57 and 44,742.12 is: 61,741.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,738.18 : 108,654.57 = 44,742.12 : x
  2. Step 2: Convert to fraction form
    78,738.18/108,654.57 = 44,742.12/x
  3. Step 3: Cross multiply
    78,738.18x = 108,654.57 × 44,742.12
  4. Step 4: Simplify right side
    78,738.18x = 4,861,435,809.49
  5. Step 5: Solve for x
    x = 4,861,435,809.49/78,738.18
  6. Step 6: Final answer
    x = 61,741.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.