Home / 66,486.18-91,749.99-38,192.10

Finding the Fourth Proportional to 66,486.18, 91,749.99 and 38,192.10

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Solution

The fourth proportional to 66,486.18, 91,749.99 and 38,192.10 is: 52,704.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,486.18 : 91,749.99 = 38,192.10 : x
  2. Step 2: Convert to fraction form
    66,486.18/91,749.99 = 38,192.10/x
  3. Step 3: Cross multiply
    66,486.18x = 91,749.99 × 38,192.10
  4. Step 4: Simplify right side
    66,486.18x = 3,504,124,793.08
  5. Step 5: Solve for x
    x = 3,504,124,793.08/66,486.18
  6. Step 6: Final answer
    x = 52,704.56

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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.