Home / 61,156.20-91,734.30-51,314.70

Finding the Fourth Proportional to 61,156.20, 91,734.30 and 51,314.70

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Solution

The fourth proportional to 61,156.20, 91,734.30 and 51,314.70 is: 76,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,156.20 : 91,734.30 = 51,314.70 : x
  2. Step 2: Convert to fraction form
    61,156.20/91,734.30 = 51,314.70/x
  3. Step 3: Cross multiply
    61,156.20x = 91,734.30 × 51,314.70
  4. Step 4: Simplify right side
    61,156.20x = 4,707,318,084.21
  5. Step 5: Solve for x
    x = 4,707,318,084.21/61,156.20
  6. Step 6: Final answer
    x = 76,972.05

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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.