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Finding the Fourth Proportional to 55,351.80, 83,014.20 and 15,904.80

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Solution

The fourth proportional to 55,351.80, 83,014.20 and 15,904.80 is: 23,853.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,351.80 : 83,014.20 = 15,904.80 : x
  2. Step 2: Convert to fraction form
    55,351.80/83,014.20 = 15,904.80/x
  3. Step 3: Cross multiply
    55,351.80x = 83,014.20 × 15,904.80
  4. Step 4: Simplify right side
    55,351.80x = 1,320,324,248.16
  5. Step 5: Solve for x
    x = 1,320,324,248.16/55,351.80
  6. Step 6: Final answer
    x = 23,853.32

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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.