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Finding the Fourth Proportional to 79,418.46, 119,128.17 and 26,828.22

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Solution

The fourth proportional to 79,418.46, 119,128.17 and 26,828.22 is: 40,242.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,418.46 : 119,128.17 = 26,828.22 : x
  2. Step 2: Convert to fraction form
    79,418.46/119,128.17 = 26,828.22/x
  3. Step 3: Cross multiply
    79,418.46x = 119,128.17 × 26,828.22
  4. Step 4: Simplify right side
    79,418.46x = 3,195,996,752.96
  5. Step 5: Solve for x
    x = 3,195,996,752.96/79,418.46
  6. Step 6: Final answer
    x = 40,242.49

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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.