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Finding the Fourth Proportional to 79,182, 109,271.19 and 43,373.30

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Solution

The fourth proportional to 79,182, 109,271.19 and 43,373.30 is: 59,855.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,182 : 109,271.19 = 43,373.30 : x
  2. Step 2: Convert to fraction form
    79,182/109,271.19 = 43,373.30/x
  3. Step 3: Cross multiply
    79,182x = 109,271.19 × 43,373.30
  4. Step 4: Simplify right side
    79,182x = 4,739,451,558.87
  5. Step 5: Solve for x
    x = 4,739,451,558.87/79,182
  6. Step 6: Final answer
    x = 59,855.16

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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.