Home / 71,911.26-99,215.55-41,690.56

Finding the Fourth Proportional to 71,911.26, 99,215.55 and 41,690.56

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Solution

The fourth proportional to 71,911.26, 99,215.55 and 41,690.56 is: 57,520.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,911.26 : 99,215.55 = 41,690.56 : x
  2. Step 2: Convert to fraction form
    71,911.26/99,215.55 = 41,690.56/x
  3. Step 3: Cross multiply
    71,911.26x = 99,215.55 × 41,690.56
  4. Step 4: Simplify right side
    71,911.26x = 4,136,351,748.51
  5. Step 5: Solve for x
    x = 4,136,351,748.51/71,911.26
  6. Step 6: Final answer
    x = 57,520.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.