Home / 57,928.14-79,964.28-49,021.92

Finding the Fourth Proportional to 57,928.14, 79,964.28 and 49,021.92

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Solution

The fourth proportional to 57,928.14, 79,964.28 and 49,021.92 is: 67,670.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,928.14 : 79,964.28 = 49,021.92 : x
  2. Step 2: Convert to fraction form
    57,928.14/79,964.28 = 49,021.92/x
  3. Step 3: Cross multiply
    57,928.14x = 79,964.28 × 49,021.92
  4. Step 4: Simplify right side
    57,928.14x = 3,920,002,537.02
  5. Step 5: Solve for x
    x = 3,920,002,537.02/57,928.14
  6. Step 6: Final answer
    x = 67,670.09

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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.