Home / 40,120.06-55,361.20-22,210.58

Finding the Fourth Proportional to 40,120.06, 55,361.20 and 22,210.58

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Solution

The fourth proportional to 40,120.06, 55,361.20 and 22,210.58 is: 30,648.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,120.06 : 55,361.20 = 22,210.58 : x
  2. Step 2: Convert to fraction form
    40,120.06/55,361.20 = 22,210.58/x
  3. Step 3: Cross multiply
    40,120.06x = 55,361.20 × 22,210.58
  4. Step 4: Simplify right side
    40,120.06x = 1,229,604,361.50
  5. Step 5: Solve for x
    x = 1,229,604,361.50/40,120.06
  6. Step 6: Final answer
    x = 30,648.12

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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.