Home / 75,474.72-113,157.18-31,085.82

Finding the Fourth Proportional to 75,474.72, 113,157.18 and 31,085.82

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Solution

The fourth proportional to 75,474.72, 113,157.18 and 31,085.82 is: 46,606.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,474.72 : 113,157.18 = 31,085.82 : x
  2. Step 2: Convert to fraction form
    75,474.72/113,157.18 = 31,085.82/x
  3. Step 3: Cross multiply
    75,474.72x = 113,157.18 × 31,085.82
  4. Step 4: Simplify right side
    75,474.72x = 3,517,583,729.19
  5. Step 5: Solve for x
    x = 3,517,583,729.19/75,474.72
  6. Step 6: Final answer
    x = 46,606.12

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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.