Home / 51,213.18-76,767.16-19,615.83

Finding the Fourth Proportional to 51,213.18, 76,767.16 and 19,615.83

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Solution

The fourth proportional to 51,213.18, 76,767.16 and 19,615.83 is: 29,403.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,213.18 : 76,767.16 = 19,615.83 : x
  2. Step 2: Convert to fraction form
    51,213.18/76,767.16 = 19,615.83/x
  3. Step 3: Cross multiply
    51,213.18x = 76,767.16 × 19,615.83
  4. Step 4: Simplify right side
    51,213.18x = 1,505,851,560.14
  5. Step 5: Solve for x
    x = 1,505,851,560.14/51,213.18
  6. Step 6: Final answer
    x = 29,403.59

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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.