Home / 66,760.16-92,099.67-39,889.22

Finding the Fourth Proportional to 66,760.16, 92,099.67 and 39,889.22

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Solution

The fourth proportional to 66,760.16, 92,099.67 and 39,889.22 is: 55,029.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,760.16 : 92,099.67 = 39,889.22 : x
  2. Step 2: Convert to fraction form
    66,760.16/92,099.67 = 39,889.22/x
  3. Step 3: Cross multiply
    66,760.16x = 92,099.67 × 39,889.22
  4. Step 4: Simplify right side
    66,760.16x = 3,673,783,998.56
  5. Step 5: Solve for x
    x = 3,673,783,998.56/66,760.16
  6. Step 6: Final answer
    x = 55,029.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.