Home / 74,385.63-111,579.35-21,796.18

Finding the Fourth Proportional to 74,385.63, 111,579.35 and 21,796.18

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Solution

The fourth proportional to 74,385.63, 111,579.35 and 21,796.18 is: 32,694.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,385.63 : 111,579.35 = 21,796.18 : x
  2. Step 2: Convert to fraction form
    74,385.63/111,579.35 = 21,796.18/x
  3. Step 3: Cross multiply
    74,385.63x = 111,579.35 × 21,796.18
  4. Step 4: Simplify right side
    74,385.63x = 2,432,003,596.88
  5. Step 5: Solve for x
    x = 2,432,003,596.88/74,385.63
  6. Step 6: Final answer
    x = 32,694.54

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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.