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Finding the Fourth Proportional to 79,141.79, 109,211.47 and 43,324.91

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Solution

The fourth proportional to 79,141.79, 109,211.47 and 43,324.91 is: 59,786.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,141.79 : 109,211.47 = 43,324.91 : x
  2. Step 2: Convert to fraction form
    79,141.79/109,211.47 = 43,324.91/x
  3. Step 3: Cross multiply
    79,141.79x = 109,211.47 × 43,324.91
  4. Step 4: Simplify right side
    79,141.79x = 4,731,576,562.66
  5. Step 5: Solve for x
    x = 4,731,576,562.66/79,141.79
  6. Step 6: Final answer
    x = 59,786.07

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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.