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Finding the Fourth Proportional to 79,141.85, 109,211.43 and 43,324.94

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Solution

The fourth proportional to 79,141.85, 109,211.43 and 43,324.94 is: 59,786.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,141.85 : 109,211.43 = 43,324.94 : x
  2. Step 2: Convert to fraction form
    79,141.85/109,211.43 = 43,324.94/x
  3. Step 3: Cross multiply
    79,141.85x = 109,211.43 × 43,324.94
  4. Step 4: Simplify right side
    79,141.85x = 4,731,578,106.01
  5. Step 5: Solve for x
    x = 4,731,578,106.01/79,141.85
  6. Step 6: Final answer
    x = 59,786.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.