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Finding the Fourth Proportional to 51,207.79, 76,758.90 and 19,609.22

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Solution

The fourth proportional to 51,207.79, 76,758.90 and 19,609.22 is: 29,393.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,207.79 : 76,758.90 = 19,609.22 : x
  2. Step 2: Convert to fraction form
    51,207.79/76,758.90 = 19,609.22/x
  3. Step 3: Cross multiply
    51,207.79x = 76,758.90 × 19,609.22
  4. Step 4: Simplify right side
    51,207.79x = 1,505,181,773.26
  5. Step 5: Solve for x
    x = 1,505,181,773.26/51,207.79
  6. Step 6: Final answer
    x = 29,393.61

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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.