Home / 56,893.48-78,510.16-31,738.12

Finding the Fourth Proportional to 56,893.48, 78,510.16 and 31,738.12

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Solution

The fourth proportional to 56,893.48, 78,510.16 and 31,738.12 is: 43,797.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,893.48 : 78,510.16 = 31,738.12 : x
  2. Step 2: Convert to fraction form
    56,893.48/78,510.16 = 31,738.12/x
  3. Step 3: Cross multiply
    56,893.48x = 78,510.16 × 31,738.12
  4. Step 4: Simplify right side
    56,893.48x = 2,491,764,879.30
  5. Step 5: Solve for x
    x = 2,491,764,879.30/56,893.48
  6. Step 6: Final answer
    x = 43,797.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.