Home / 66,310.04-99,467.22-21,939.32

Finding the Fourth Proportional to 66,310.04, 99,467.22 and 21,939.32

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Solution

The fourth proportional to 66,310.04, 99,467.22 and 21,939.32 is: 32,909.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,310.04 : 99,467.22 = 21,939.32 : x
  2. Step 2: Convert to fraction form
    66,310.04/99,467.22 = 21,939.32/x
  3. Step 3: Cross multiply
    66,310.04x = 99,467.22 × 21,939.32
  4. Step 4: Simplify right side
    66,310.04x = 2,182,243,169.09
  5. Step 5: Solve for x
    x = 2,182,243,169.09/66,310.04
  6. Step 6: Final answer
    x = 32,909.69

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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.