Home / 74,787.93-112,182.31-18,628.05

Finding the Fourth Proportional to 74,787.93, 112,182.31 and 18,628.05

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Solution

The fourth proportional to 74,787.93, 112,182.31 and 18,628.05 is: 27,942.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,787.93 : 112,182.31 = 18,628.05 : x
  2. Step 2: Convert to fraction form
    74,787.93/112,182.31 = 18,628.05/x
  3. Step 3: Cross multiply
    74,787.93x = 112,182.31 × 18,628.05
  4. Step 4: Simplify right side
    74,787.93x = 2,089,737,118.88
  5. Step 5: Solve for x
    x = 2,089,737,118.88/74,787.93
  6. Step 6: Final answer
    x = 27,942.17

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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.