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Finding the Fourth Proportional to 55,269, 76,271.76 and 30,119.04

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Solution

The fourth proportional to 55,269, 76,271.76 and 30,119.04 is: 41,564.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,269 : 76,271.76 = 30,119.04 : x
  2. Step 2: Convert to fraction form
    55,269/76,271.76 = 30,119.04/x
  3. Step 3: Cross multiply
    55,269x = 76,271.76 × 30,119.04
  4. Step 4: Simplify right side
    55,269x = 2,297,232,190.31
  5. Step 5: Solve for x
    x = 2,297,232,190.31/55,269
  6. Step 6: Final answer
    x = 41,564.57

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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.