Home / 57,150.40-86,228.28-55,186.88

Finding the Fourth Proportional to 57,150.40, 86,228.28 and 55,186.88

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Solution

The fourth proportional to 57,150.40, 86,228.28 and 55,186.88 is: 83,265.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,150.40 : 86,228.28 = 55,186.88 : x
  2. Step 2: Convert to fraction form
    57,150.40/86,228.28 = 55,186.88/x
  3. Step 3: Cross multiply
    57,150.40x = 86,228.28 × 55,186.88
  4. Step 4: Simplify right side
    57,150.40x = 4,758,669,740.97
  5. Step 5: Solve for x
    x = 4,758,669,740.97/57,150.40
  6. Step 6: Final answer
    x = 83,265.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.