Home / 51,213.91-76,768.08-19,615.35

Finding the Fourth Proportional to 51,213.91, 76,768.08 and 19,615.35

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Solution

The fourth proportional to 51,213.91, 76,768.08 and 19,615.35 is: 29,402.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,213.91 : 76,768.08 = 19,615.35 : x
  2. Step 2: Convert to fraction form
    51,213.91/76,768.08 = 19,615.35/x
  3. Step 3: Cross multiply
    51,213.91x = 76,768.08 × 19,615.35
  4. Step 4: Simplify right side
    51,213.91x = 1,505,832,758.03
  5. Step 5: Solve for x
    x = 1,505,832,758.03/51,213.91
  6. Step 6: Final answer
    x = 29,402.81

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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.