Home / 74,787.09-112,147.77-28,007.16

Finding the Fourth Proportional to 74,787.09, 112,147.77 and 28,007.16

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Solution

The fourth proportional to 74,787.09, 112,147.77 and 28,007.16 is: 41,998.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,787.09 : 112,147.77 = 28,007.16 : x
  2. Step 2: Convert to fraction form
    74,787.09/112,147.77 = 28,007.16/x
  3. Step 3: Cross multiply
    74,787.09x = 112,147.77 × 28,007.16
  4. Step 4: Simplify right side
    74,787.09x = 3,140,940,538.03
  5. Step 5: Solve for x
    x = 3,140,940,538.03/74,787.09
  6. Step 6: Final answer
    x = 41,998.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.