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Finding the Fourth Proportional to 55,120.37, 76,052.79 and 34,970

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Solution

The fourth proportional to 55,120.37, 76,052.79 and 34,970 is: 48,250.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,120.37 : 76,052.79 = 34,970 : x
  2. Step 2: Convert to fraction form
    55,120.37/76,052.79 = 34,970/x
  3. Step 3: Cross multiply
    55,120.37x = 76,052.79 × 34,970
  4. Step 4: Simplify right side
    55,120.37x = 2,659,566,066.30
  5. Step 5: Solve for x
    x = 2,659,566,066.30/55,120.37
  6. Step 6: Final answer
    x = 48,250.15

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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.