Home / 57,055.20-78,732.18-33,180.18

Finding the Fourth Proportional to 57,055.20, 78,732.18 and 33,180.18

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Solution

The fourth proportional to 57,055.20, 78,732.18 and 33,180.18 is: 45,786.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,055.20 : 78,732.18 = 33,180.18 : x
  2. Step 2: Convert to fraction form
    57,055.20/78,732.18 = 33,180.18/x
  3. Step 3: Cross multiply
    57,055.20x = 78,732.18 × 33,180.18
  4. Step 4: Simplify right side
    57,055.20x = 2,612,347,904.19
  5. Step 5: Solve for x
    x = 2,612,347,904.19/57,055.20
  6. Step 6: Final answer
    x = 45,786.32

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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.