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Finding the Fourth Proportional to 80,871, 111,601.98 and 47,337

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Solution

The fourth proportional to 80,871, 111,601.98 and 47,337 is: 65,325.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,871 : 111,601.98 = 47,337 : x
  2. Step 2: Convert to fraction form
    80,871/111,601.98 = 47,337/x
  3. Step 3: Cross multiply
    80,871x = 111,601.98 × 47,337
  4. Step 4: Simplify right side
    80,871x = 5,282,902,927.26
  5. Step 5: Solve for x
    x = 5,282,902,927.26/80,871
  6. Step 6: Final answer
    x = 65,325.06

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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.