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Finding the Fourth Proportional to 79,224.68, 109,333.05 and 45,238.70

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Solution

The fourth proportional to 79,224.68, 109,333.05 and 45,238.70 is: 62,431.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,224.68 : 109,333.05 = 45,238.70 : x
  2. Step 2: Convert to fraction form
    79,224.68/109,333.05 = 45,238.70/x
  3. Step 3: Cross multiply
    79,224.68x = 109,333.05 × 45,238.70
  4. Step 4: Simplify right side
    79,224.68x = 4,946,085,049.04
  5. Step 5: Solve for x
    x = 4,946,085,049.04/79,224.68
  6. Step 6: Final answer
    x = 62,431.11

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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.