Home / 80,570.22-111,200.22-67,120.17

Finding the Fourth Proportional to 80,570.22, 111,200.22 and 67,120.17

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Solution

The fourth proportional to 80,570.22, 111,200.22 and 67,120.17 is: 92,636.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,570.22 : 111,200.22 = 67,120.17 : x
  2. Step 2: Convert to fraction form
    80,570.22/111,200.22 = 67,120.17/x
  3. Step 3: Cross multiply
    80,570.22x = 111,200.22 × 67,120.17
  4. Step 4: Simplify right side
    80,570.22x = 7,463,777,670.44
  5. Step 5: Solve for x
    x = 7,463,777,670.44/80,570.22
  6. Step 6: Final answer
    x = 92,636.93

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1.5x scale

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.