Home / 70,622.46-105,933.69-18,030.06

Finding the Fourth Proportional to 70,622.46, 105,933.69 and 18,030.06

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Solution

The fourth proportional to 70,622.46, 105,933.69 and 18,030.06 is: 27,045.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,622.46 : 105,933.69 = 18,030.06 : x
  2. Step 2: Convert to fraction form
    70,622.46/105,933.69 = 18,030.06/x
  3. Step 3: Cross multiply
    70,622.46x = 105,933.69 × 18,030.06
  4. Step 4: Simplify right side
    70,622.46x = 1,909,990,786.72
  5. Step 5: Solve for x
    x = 1,909,990,786.72/70,622.46
  6. Step 6: Final answer
    x = 27,045.09

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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.