Home / 66,817.34-100,086.54-40,078.53

Finding the Fourth Proportional to 66,817.34, 100,086.54 and 40,078.53

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Solution

The fourth proportional to 66,817.34, 100,086.54 and 40,078.53 is: 60,034.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,817.34 : 100,086.54 = 40,078.53 : x
  2. Step 2: Convert to fraction form
    66,817.34/100,086.54 = 40,078.53/x
  3. Step 3: Cross multiply
    66,817.34x = 100,086.54 × 40,078.53
  4. Step 4: Simplify right side
    66,817.34x = 4,011,321,395.99
  5. Step 5: Solve for x
    x = 4,011,321,395.99/66,817.34
  6. Step 6: Final answer
    x = 60,034.14

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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.