Home / 81,576.27-122,484.52-45,623.16

Finding the Fourth Proportional to 81,576.27, 122,484.52 and 45,623.16

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Solution

The fourth proportional to 81,576.27, 122,484.52 and 45,623.16 is: 68,501.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,576.27 : 122,484.52 = 45,623.16 : x
  2. Step 2: Convert to fraction form
    81,576.27/122,484.52 = 45,623.16/x
  3. Step 3: Cross multiply
    81,576.27x = 122,484.52 × 45,623.16
  4. Step 4: Simplify right side
    81,576.27x = 5,588,131,224.24
  5. Step 5: Solve for x
    x = 5,588,131,224.24/81,576.27
  6. Step 6: Final answer
    x = 68,501.92

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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.