Home / 57,156.40-78,857.52-37,028.80

Finding the Fourth Proportional to 57,156.40, 78,857.52 and 37,028.80

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Solution

The fourth proportional to 57,156.40, 78,857.52 and 37,028.80 is: 51,087.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,156.40 : 78,857.52 = 37,028.80 : x
  2. Step 2: Convert to fraction form
    57,156.40/78,857.52 = 37,028.80/x
  3. Step 3: Cross multiply
    57,156.40x = 78,857.52 × 37,028.80
  4. Step 4: Simplify right side
    57,156.40x = 2,919,999,336.58
  5. Step 5: Solve for x
    x = 2,919,999,336.58/57,156.40
  6. Step 6: Final answer
    x = 51,087.88

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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.