Home / 74,186.50-102,377.37-40,651.78

Finding the Fourth Proportional to 74,186.50, 102,377.37 and 40,651.78

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Solution

The fourth proportional to 74,186.50, 102,377.37 and 40,651.78 is: 56,099.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,186.50 : 102,377.37 = 40,651.78 : x
  2. Step 2: Convert to fraction form
    74,186.50/102,377.37 = 40,651.78/x
  3. Step 3: Cross multiply
    74,186.50x = 102,377.37 × 40,651.78
  4. Step 4: Simplify right side
    74,186.50x = 4,161,822,322.22
  5. Step 5: Solve for x
    x = 4,161,822,322.22/74,186.50
  6. Step 6: Final answer
    x = 56,099.46

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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.