Home / 66,091.56-99,172.62-31,031.56

Finding the Fourth Proportional to 66,091.56, 99,172.62 and 31,031.56

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Solution

The fourth proportional to 66,091.56, 99,172.62 and 31,031.56 is: 46,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,091.56 : 99,172.62 = 31,031.56 : x
  2. Step 2: Convert to fraction form
    66,091.56/99,172.62 = 31,031.56/x
  3. Step 3: Cross multiply
    66,091.56x = 99,172.62 × 31,031.56
  4. Step 4: Simplify right side
    66,091.56x = 3,077,481,107.89
  5. Step 5: Solve for x
    x = 3,077,481,107.89/66,091.56
  6. Step 6: Final answer
    x = 46,563.90

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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.