Home / 71,212.19-98,272.68-40,986.50

Finding the Fourth Proportional to 71,212.19, 98,272.68 and 40,986.50

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Solution

The fourth proportional to 71,212.19, 98,272.68 and 40,986.50 is: 56,561.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,212.19 : 98,272.68 = 40,986.50 : x
  2. Step 2: Convert to fraction form
    71,212.19/98,272.68 = 40,986.50/x
  3. Step 3: Cross multiply
    71,212.19x = 98,272.68 × 40,986.50
  4. Step 4: Simplify right side
    71,212.19x = 4,027,853,198.82
  5. Step 5: Solve for x
    x = 4,027,853,198.82/71,212.19
  6. Step 6: Final answer
    x = 56,561.29

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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.