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Finding the Fourth Proportional to 79,207.56, 109,302.26 and 45,214.70

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Solution

The fourth proportional to 79,207.56, 109,302.26 and 45,214.70 is: 62,393.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,207.56 : 109,302.26 = 45,214.70 : x
  2. Step 2: Convert to fraction form
    79,207.56/109,302.26 = 45,214.70/x
  3. Step 3: Cross multiply
    79,207.56x = 109,302.26 × 45,214.70
  4. Step 4: Simplify right side
    79,207.56x = 4,942,068,122.64
  5. Step 5: Solve for x
    x = 4,942,068,122.64/79,207.56
  6. Step 6: Final answer
    x = 62,393.89

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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.