Home / 53,183.41-73,401.20-40,415.78

Finding the Fourth Proportional to 53,183.41, 73,401.20 and 40,415.78

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Solution

The fourth proportional to 53,183.41, 73,401.20 and 40,415.78 is: 55,779.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,183.41 : 73,401.20 = 40,415.78 : x
  2. Step 2: Convert to fraction form
    53,183.41/73,401.20 = 40,415.78/x
  3. Step 3: Cross multiply
    53,183.41x = 73,401.20 × 40,415.78
  4. Step 4: Simplify right side
    53,183.41x = 2,966,566,750.94
  5. Step 5: Solve for x
    x = 2,966,566,750.94/53,183.41
  6. Step 6: Final answer
    x = 55,779.93

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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.