Home / 281,089.30-421,634.12-70,727.24

Finding the Fourth Proportional to 281,089.30, 421,634.12 and 70,727.24

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Solution

The fourth proportional to 281,089.30, 421,634.12 and 70,727.24 is: 106,090.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,089.30 : 421,634.12 = 70,727.24 : x
  2. Step 2: Convert to fraction form
    281,089.30/421,634.12 = 70,727.24/x
  3. Step 3: Cross multiply
    281,089.30x = 421,634.12 × 70,727.24
  4. Step 4: Simplify right side
    281,089.30x = 29,821,017,016.41
  5. Step 5: Solve for x
    x = 29,821,017,016.41/281,089.30
  6. Step 6: Final answer
    x = 106,090.90

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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.