Home / 66,525.56-99,771.30-19,767.50

Finding the Fourth Proportional to 66,525.56, 99,771.30 and 19,767.50

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Solution

The fourth proportional to 66,525.56, 99,771.30 and 19,767.50 is: 29,646.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,525.56 : 99,771.30 = 19,767.50 : x
  2. Step 2: Convert to fraction form
    66,525.56/99,771.30 = 19,767.50/x
  3. Step 3: Cross multiply
    66,525.56x = 99,771.30 × 19,767.50
  4. Step 4: Simplify right side
    66,525.56x = 1,972,229,172.75
  5. Step 5: Solve for x
    x = 1,972,229,172.75/66,525.56
  6. Step 6: Final answer
    x = 29,646.19

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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.