Home / 82,323.72-123,354.36-52,717.20

Finding the Fourth Proportional to 82,323.72, 123,354.36 and 52,717.20

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Solution

The fourth proportional to 82,323.72, 123,354.36 and 52,717.20 is: 78,991.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,323.72 : 123,354.36 = 52,717.20 : x
  2. Step 2: Convert to fraction form
    82,323.72/123,354.36 = 52,717.20/x
  3. Step 3: Cross multiply
    82,323.72x = 123,354.36 × 52,717.20
  4. Step 4: Simplify right side
    82,323.72x = 6,502,896,466.99
  5. Step 5: Solve for x
    x = 6,502,896,466.99/82,323.72
  6. Step 6: Final answer
    x = 78,991.77

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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.