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Finding the Fourth Proportional to 79,446.42, 119,169.53 and 20,282.10

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Solution

The fourth proportional to 79,446.42, 119,169.53 and 20,282.10 is: 30,423.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,446.42 : 119,169.53 = 20,282.10 : x
  2. Step 2: Convert to fraction form
    79,446.42/119,169.53 = 20,282.10/x
  3. Step 3: Cross multiply
    79,446.42x = 119,169.53 × 20,282.10
  4. Step 4: Simplify right side
    79,446.42x = 2,417,008,223.00
  5. Step 5: Solve for x
    x = 2,417,008,223.00/79,446.42
  6. Step 6: Final answer
    x = 30,423.12

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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.