Home / 75,861.18-113,699.43-53,680.95

Finding the Fourth Proportional to 75,861.18, 113,699.43 and 53,680.95

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Solution

The fourth proportional to 75,861.18, 113,699.43 and 53,680.95 is: 80,456.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,861.18 : 113,699.43 = 53,680.95 : x
  2. Step 2: Convert to fraction form
    75,861.18/113,699.43 = 53,680.95/x
  3. Step 3: Cross multiply
    75,861.18x = 113,699.43 × 53,680.95
  4. Step 4: Simplify right side
    75,861.18x = 6,103,493,416.86
  5. Step 5: Solve for x
    x = 6,103,493,416.86/75,861.18
  6. Step 6: Final answer
    x = 80,456.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.