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Finding the Fourth Proportional to 79,230.81, 118,846.80 and 20,066.67

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Solution

The fourth proportional to 79,230.81, 118,846.80 and 20,066.67 is: 30,100.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,230.81 : 118,846.80 = 20,066.67 : x
  2. Step 2: Convert to fraction form
    79,230.81/118,846.80 = 20,066.67/x
  3. Step 3: Cross multiply
    79,230.81x = 118,846.80 × 20,066.67
  4. Step 4: Simplify right side
    79,230.81x = 2,384,859,516.16
  5. Step 5: Solve for x
    x = 2,384,859,516.16/79,230.81
  6. Step 6: Final answer
    x = 30,100.15

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1.5x scale

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.