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Finding the Fourth Proportional to 79,000.29, 109,020.79 and 43,190.30

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Solution

The fourth proportional to 79,000.29, 109,020.79 and 43,190.30 is: 59,602.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,000.29 : 109,020.79 = 43,190.30 : x
  2. Step 2: Convert to fraction form
    79,000.29/109,020.79 = 43,190.30/x
  3. Step 3: Cross multiply
    79,000.29x = 109,020.79 × 43,190.30
  4. Step 4: Simplify right side
    79,000.29x = 4,708,640,626.34
  5. Step 5: Solve for x
    x = 4,708,640,626.34/79,000.29
  6. Step 6: Final answer
    x = 59,602.83

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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.