Home / 55,121.26-82,729.89-31,476.16

Finding the Fourth Proportional to 55,121.26, 82,729.89 and 31,476.16

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Solution

The fourth proportional to 55,121.26, 82,729.89 and 31,476.16 is: 47,241.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,121.26 : 82,729.89 = 31,476.16 : x
  2. Step 2: Convert to fraction form
    55,121.26/82,729.89 = 31,476.16/x
  3. Step 3: Cross multiply
    55,121.26x = 82,729.89 × 31,476.16
  4. Step 4: Simplify right side
    55,121.26x = 2,604,019,254.42
  5. Step 5: Solve for x
    x = 2,604,019,254.42/55,121.26
  6. Step 6: Final answer
    x = 47,241.65

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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.