Home / 66,145.14-91,294.73-40,673.42

Finding the Fourth Proportional to 66,145.14, 91,294.73 and 40,673.42

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Solution

The fourth proportional to 66,145.14, 91,294.73 and 40,673.42 is: 56,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,145.14 : 91,294.73 = 40,673.42 : x
  2. Step 2: Convert to fraction form
    66,145.14/91,294.73 = 40,673.42/x
  3. Step 3: Cross multiply
    66,145.14x = 91,294.73 × 40,673.42
  4. Step 4: Simplify right side
    66,145.14x = 3,713,269,227.00
  5. Step 5: Solve for x
    x = 3,713,269,227.00/66,145.14
  6. Step 6: Final answer
    x = 56,138.20

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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.