Home / 79,787.14-110,107.02-43,978.54

Finding the Fourth Proportional to 79,787.14, 110,107.02 and 43,978.54

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Solution

The fourth proportional to 79,787.14, 110,107.02 and 43,978.54 is: 60,690.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,787.14 : 110,107.02 = 43,978.54 : x
  2. Step 2: Convert to fraction form
    79,787.14/110,107.02 = 43,978.54/x
  3. Step 3: Cross multiply
    79,787.14x = 110,107.02 × 43,978.54
  4. Step 4: Simplify right side
    79,787.14x = 4,842,345,983.35
  5. Step 5: Solve for x
    x = 4,842,345,983.35/79,787.14
  6. Step 6: Final answer
    x = 60,690.81

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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.