Home / 56,842.46-78,396.36-50,021.75

Finding the Fourth Proportional to 56,842.46, 78,396.36 and 50,021.75

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Solution

The fourth proportional to 56,842.46, 78,396.36 and 50,021.75 is: 68,989.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,842.46 : 78,396.36 = 50,021.75 : x
  2. Step 2: Convert to fraction form
    56,842.46/78,396.36 = 50,021.75/x
  3. Step 3: Cross multiply
    56,842.46x = 78,396.36 × 50,021.75
  4. Step 4: Simplify right side
    56,842.46x = 3,921,523,129.24
  5. Step 5: Solve for x
    x = 3,921,523,129.24/56,842.46
  6. Step 6: Final answer
    x = 68,989.33

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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.