Home / 66,520.20-99,796.70-19,773.07

Finding the Fourth Proportional to 66,520.20, 99,796.70 and 19,773.07

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Solution

The fourth proportional to 66,520.20, 99,796.70 and 19,773.07 is: 29,664.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,520.20 : 99,796.70 = 19,773.07 : x
  2. Step 2: Convert to fraction form
    66,520.20/99,796.70 = 19,773.07/x
  3. Step 3: Cross multiply
    66,520.20x = 99,796.70 × 19,773.07
  4. Step 4: Simplify right side
    66,520.20x = 1,973,287,134.87
  5. Step 5: Solve for x
    x = 1,973,287,134.87/66,520.20
  6. Step 6: Final answer
    x = 29,664.48

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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.