Home / 74,343.92-102,592.32-40,350.80

Finding the Fourth Proportional to 74,343.92, 102,592.32 and 40,350.80

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Solution

The fourth proportional to 74,343.92, 102,592.32 and 40,350.80 is: 55,682.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,343.92 : 102,592.32 = 40,350.80 : x
  2. Step 2: Convert to fraction form
    74,343.92/102,592.32 = 40,350.80/x
  3. Step 3: Cross multiply
    74,343.92x = 102,592.32 × 40,350.80
  4. Step 4: Simplify right side
    74,343.92x = 4,139,682,185.86
  5. Step 5: Solve for x
    x = 4,139,682,185.86/74,343.92
  6. Step 6: Final answer
    x = 55,682.86

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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.