Home / 71,132.04-106,695.77-21,212.55

Finding the Fourth Proportional to 71,132.04, 106,695.77 and 21,212.55

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Solution

The fourth proportional to 71,132.04, 106,695.77 and 21,212.55 is: 31,818.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,132.04 : 106,695.77 = 21,212.55 : x
  2. Step 2: Convert to fraction form
    71,132.04/106,695.77 = 21,212.55/x
  3. Step 3: Cross multiply
    71,132.04x = 106,695.77 × 21,212.55
  4. Step 4: Simplify right side
    71,132.04x = 2,263,289,249.85
  5. Step 5: Solve for x
    x = 2,263,289,249.85/71,132.04
  6. Step 6: Final answer
    x = 31,818.14

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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.