Home / 66,040.96-91,133.76-36,231.04

Finding the Fourth Proportional to 66,040.96, 91,133.76 and 36,231.04

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Solution

The fourth proportional to 66,040.96, 91,133.76 and 36,231.04 is: 49,997.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,040.96 : 91,133.76 = 36,231.04 : x
  2. Step 2: Convert to fraction form
    66,040.96/91,133.76 = 36,231.04/x
  3. Step 3: Cross multiply
    66,040.96x = 91,133.76 × 36,231.04
  4. Step 4: Simplify right side
    66,040.96x = 3,301,870,903.91
  5. Step 5: Solve for x
    x = 3,301,870,903.91/66,040.96
  6. Step 6: Final answer
    x = 49,997.32

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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.