Home / 80,921.47-121,396.77-24,760.54

Finding the Fourth Proportional to 80,921.47, 121,396.77 and 24,760.54

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Solution

The fourth proportional to 80,921.47, 121,396.77 and 24,760.54 is: 37,145.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,921.47 : 121,396.77 = 24,760.54 : x
  2. Step 2: Convert to fraction form
    80,921.47/121,396.77 = 24,760.54/x
  3. Step 3: Cross multiply
    80,921.47x = 121,396.77 × 24,760.54
  4. Step 4: Simplify right side
    80,921.47x = 3,005,849,579.46
  5. Step 5: Solve for x
    x = 3,005,849,579.46/80,921.47
  6. Step 6: Final answer
    x = 37,145.27

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1.5x scale

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.