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Finding the Fourth Proportional to 80,415.16, 110,900.28 and 50,203.28

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Solution

The fourth proportional to 80,415.16, 110,900.28 and 50,203.28 is: 69,235.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,415.16 : 110,900.28 = 50,203.28 : x
  2. Step 2: Convert to fraction form
    80,415.16/110,900.28 = 50,203.28/x
  3. Step 3: Cross multiply
    80,415.16x = 110,900.28 × 50,203.28
  4. Step 4: Simplify right side
    80,415.16x = 5,567,557,808.92
  5. Step 5: Solve for x
    x = 5,567,557,808.92/80,415.16
  6. Step 6: Final answer
    x = 69,235.18

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1.5x scale

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.