Home / 56,778.26-78,363.33-31,635.86

Finding the Fourth Proportional to 56,778.26, 78,363.33 and 31,635.86

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Solution

The fourth proportional to 56,778.26, 78,363.33 and 31,635.86 is: 43,662.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,778.26 : 78,363.33 = 31,635.86 : x
  2. Step 2: Convert to fraction form
    56,778.26/78,363.33 = 31,635.86/x
  3. Step 3: Cross multiply
    56,778.26x = 78,363.33 × 31,635.86
  4. Step 4: Simplify right side
    56,778.26x = 2,479,091,337.01
  5. Step 5: Solve for x
    x = 2,479,091,337.01/56,778.26
  6. Step 6: Final answer
    x = 43,662.69

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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.