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Finding the Fourth Proportional to 110,776.80, 166,051.80 and 54,530.40

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Solution

The fourth proportional to 110,776.80, 166,051.80 and 54,530.40 is: 81,739.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,776.80 : 166,051.80 = 54,530.40 : x
  2. Step 2: Convert to fraction form
    110,776.80/166,051.80 = 54,530.40/x
  3. Step 3: Cross multiply
    110,776.80x = 166,051.80 × 54,530.40
  4. Step 4: Simplify right side
    110,776.80x = 9,054,871,074.72
  5. Step 5: Solve for x
    x = 9,054,871,074.72/110,776.80
  6. Step 6: Final answer
    x = 81,739.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.