Home / 66,141.04-99,174.24-21,755.80

Finding the Fourth Proportional to 66,141.04, 99,174.24 and 21,755.80

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Solution

The fourth proportional to 66,141.04, 99,174.24 and 21,755.80 is: 32,621.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,141.04 : 99,174.24 = 21,755.80 : x
  2. Step 2: Convert to fraction form
    66,141.04/99,174.24 = 21,755.80/x
  3. Step 3: Cross multiply
    66,141.04x = 99,174.24 × 21,755.80
  4. Step 4: Simplify right side
    66,141.04x = 2,157,614,930.59
  5. Step 5: Solve for x
    x = 2,157,614,930.59/66,141.04
  6. Step 6: Final answer
    x = 32,621.42

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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.