Home / 66,515.08-99,776.94-19,764.04

Finding the Fourth Proportional to 66,515.08, 99,776.94 and 19,764.04

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Solution

The fourth proportional to 66,515.08, 99,776.94 and 19,764.04 is: 29,647.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,515.08 : 99,776.94 = 19,764.04 : x
  2. Step 2: Convert to fraction form
    66,515.08/99,776.94 = 19,764.04/x
  3. Step 3: Cross multiply
    66,515.08x = 99,776.94 × 19,764.04
  4. Step 4: Simplify right side
    66,515.08x = 1,971,995,433.24
  5. Step 5: Solve for x
    x = 1,971,995,433.24/66,515.08
  6. Step 6: Final answer
    x = 29,647.34

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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.