Home / 82,285.88-123,403.28-29,688.52

Finding the Fourth Proportional to 82,285.88, 123,403.28 and 29,688.52

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Solution

The fourth proportional to 82,285.88, 123,403.28 and 29,688.52 is: 44,523.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,285.88 : 123,403.28 = 29,688.52 : x
  2. Step 2: Convert to fraction form
    82,285.88/123,403.28 = 29,688.52/x
  3. Step 3: Cross multiply
    82,285.88x = 123,403.28 × 29,688.52
  4. Step 4: Simplify right side
    82,285.88x = 3,663,660,746.35
  5. Step 5: Solve for x
    x = 3,663,660,746.35/82,285.88
  6. Step 6: Final answer
    x = 44,523.57

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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.