Home / 51,443.40-77,168.09-19,853.64

Finding the Fourth Proportional to 51,443.40, 77,168.09 and 19,853.64

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Solution

The fourth proportional to 51,443.40, 77,168.09 and 19,853.64 is: 29,781.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,443.40 : 77,168.09 = 19,853.64 : x
  2. Step 2: Convert to fraction form
    51,443.40/77,168.09 = 19,853.64/x
  3. Step 3: Cross multiply
    51,443.40x = 77,168.09 × 19,853.64
  4. Step 4: Simplify right side
    51,443.40x = 1,532,067,527.98
  5. Step 5: Solve for x
    x = 1,532,067,527.98/51,443.40
  6. Step 6: Final answer
    x = 29,781.61

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1.5x scale

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.