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Finding the Fourth Proportional to 67,556, 101,287.16 and 30,096.20

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Solution

The fourth proportional to 67,556, 101,287.16 and 30,096.20 is: 45,123.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,556 : 101,287.16 = 30,096.20 : x
  2. Step 2: Convert to fraction form
    67,556/101,287.16 = 30,096.20/x
  3. Step 3: Cross multiply
    67,556x = 101,287.16 × 30,096.20
  4. Step 4: Simplify right side
    67,556x = 3,048,358,624.79
  5. Step 5: Solve for x
    x = 3,048,358,624.79/67,556
  6. Step 6: Final answer
    x = 45,123.43

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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.