Home / 61,156.26-91,609.11-36,120.51

Finding the Fourth Proportional to 61,156.26, 91,609.11 and 36,120.51

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Solution

The fourth proportional to 61,156.26, 91,609.11 and 36,120.51 is: 54,106.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,156.26 : 91,609.11 = 36,120.51 : x
  2. Step 2: Convert to fraction form
    61,156.26/91,609.11 = 36,120.51/x
  3. Step 3: Cross multiply
    61,156.26x = 91,609.11 × 36,120.51
  4. Step 4: Simplify right side
    61,156.26x = 3,308,967,773.85
  5. Step 5: Solve for x
    x = 3,308,967,773.85/61,156.26
  6. Step 6: Final answer
    x = 54,106.77

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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.