Home / 57,285.41-85,916.98-28,814.78

Finding the Fourth Proportional to 57,285.41, 85,916.98 and 28,814.78

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Solution

The fourth proportional to 57,285.41, 85,916.98 and 28,814.78 is: 43,216.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,285.41 : 85,916.98 = 28,814.78 : x
  2. Step 2: Convert to fraction form
    57,285.41/85,916.98 = 28,814.78/x
  3. Step 3: Cross multiply
    57,285.41x = 85,916.98 × 28,814.78
  4. Step 4: Simplify right side
    57,285.41x = 2,475,678,375.34
  5. Step 5: Solve for x
    x = 2,475,678,375.34/57,285.41
  6. Step 6: Final answer
    x = 43,216.56

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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.