Home / 66,926.72-100,379.31-19,530.69

Finding the Fourth Proportional to 66,926.72, 100,379.31 and 19,530.69

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Solution

The fourth proportional to 66,926.72, 100,379.31 and 19,530.69 is: 29,292.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,926.72 : 100,379.31 = 19,530.69 : x
  2. Step 2: Convert to fraction form
    66,926.72/100,379.31 = 19,530.69/x
  3. Step 3: Cross multiply
    66,926.72x = 100,379.31 × 19,530.69
  4. Step 4: Simplify right side
    66,926.72x = 1,960,477,186.02
  5. Step 5: Solve for x
    x = 1,960,477,186.02/66,926.72
  6. Step 6: Final answer
    x = 29,292.89

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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.