Home / 57,184.14-78,911.84-31,691.60

Finding the Fourth Proportional to 57,184.14, 78,911.84 and 31,691.60

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Solution

The fourth proportional to 57,184.14, 78,911.84 and 31,691.60 is: 43,733.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,184.14 : 78,911.84 = 31,691.60 : x
  2. Step 2: Convert to fraction form
    57,184.14/78,911.84 = 31,691.60/x
  3. Step 3: Cross multiply
    57,184.14x = 78,911.84 × 31,691.60
  4. Step 4: Simplify right side
    57,184.14x = 2,500,842,468.54
  5. Step 5: Solve for x
    x = 2,500,842,468.54/57,184.14
  6. Step 6: Final answer
    x = 43,733.15

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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.