Home / 55,002.20-82,503.30-13,449.20

Finding the Fourth Proportional to 55,002.20, 82,503.30 and 13,449.20

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Solution

The fourth proportional to 55,002.20, 82,503.30 and 13,449.20 is: 20,173.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,002.20 : 82,503.30 = 13,449.20 : x
  2. Step 2: Convert to fraction form
    55,002.20/82,503.30 = 13,449.20/x
  3. Step 3: Cross multiply
    55,002.20x = 82,503.30 × 13,449.20
  4. Step 4: Simplify right side
    55,002.20x = 1,109,602,969.84
  5. Step 5: Solve for x
    x = 1,109,602,969.84/55,002.20
  6. Step 6: Final answer
    x = 20,173.79

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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.