Home / 80,790.23-121,004.87-58,552.55

Finding the Fourth Proportional to 80,790.23, 121,004.87 and 58,552.55

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Solution

The fourth proportional to 80,790.23, 121,004.87 and 58,552.55 is: 87,698.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,790.23 : 121,004.87 = 58,552.55 : x
  2. Step 2: Convert to fraction form
    80,790.23/121,004.87 = 58,552.55/x
  3. Step 3: Cross multiply
    80,790.23x = 121,004.87 × 58,552.55
  4. Step 4: Simplify right side
    80,790.23x = 7,085,143,700.92
  5. Step 5: Solve for x
    x = 7,085,143,700.92/80,790.23
  6. Step 6: Final answer
    x = 87,698.03

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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.