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Finding the Fourth Proportional to 79,291.56, 109,422.24 and 45,757.56

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Solution

The fourth proportional to 79,291.56, 109,422.24 and 45,757.56 is: 63,145.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,291.56 : 109,422.24 = 45,757.56 : x
  2. Step 2: Convert to fraction form
    79,291.56/109,422.24 = 45,757.56/x
  3. Step 3: Cross multiply
    79,291.56x = 109,422.24 × 45,757.56
  4. Step 4: Simplify right side
    79,291.56x = 5,006,894,712.13
  5. Step 5: Solve for x
    x = 5,006,894,712.13/79,291.56
  6. Step 6: Final answer
    x = 63,145.37

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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.