Home / 74,806.09-103,236.39-42,977.05

Finding the Fourth Proportional to 74,806.09, 103,236.39 and 42,977.05

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Solution

The fourth proportional to 74,806.09, 103,236.39 and 42,977.05 is: 59,310.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,806.09 : 103,236.39 = 42,977.05 : x
  2. Step 2: Convert to fraction form
    74,806.09/103,236.39 = 42,977.05/x
  3. Step 3: Cross multiply
    74,806.09x = 103,236.39 × 42,977.05
  4. Step 4: Simplify right side
    74,806.09x = 4,436,795,494.85
  5. Step 5: Solve for x
    x = 4,436,795,494.85/74,806.09
  6. Step 6: Final answer
    x = 59,310.62

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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.