Home / 55,918.85-77,155.34-40,819.73

Finding the Fourth Proportional to 55,918.85, 77,155.34 and 40,819.73

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Solution

The fourth proportional to 55,918.85, 77,155.34 and 40,819.73 is: 56,321.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,918.85 : 77,155.34 = 40,819.73 : x
  2. Step 2: Convert to fraction form
    55,918.85/77,155.34 = 40,819.73/x
  3. Step 3: Cross multiply
    55,918.85x = 77,155.34 × 40,819.73
  4. Step 4: Simplify right side
    55,918.85x = 3,149,459,556.98
  5. Step 5: Solve for x
    x = 3,149,459,556.98/55,918.85
  6. Step 6: Final answer
    x = 56,321.97

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1.5x scale

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.