Home / 66,429.57-99,644.72-19,682.85

Finding the Fourth Proportional to 66,429.57, 99,644.72 and 19,682.85

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Solution

The fourth proportional to 66,429.57, 99,644.72 and 19,682.85 is: 29,524.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429.57 : 99,644.72 = 19,682.85 : x
  2. Step 2: Convert to fraction form
    66,429.57/99,644.72 = 19,682.85/x
  3. Step 3: Cross multiply
    66,429.57x = 99,644.72 × 19,682.85
  4. Step 4: Simplify right side
    66,429.57x = 1,961,291,978.64
  5. Step 5: Solve for x
    x = 1,961,291,978.64/66,429.57
  6. Step 6: Final answer
    x = 29,524.38

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1.5x scale

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.