Home / 69,678.80-104,536.20-30,226.88

Finding the Fourth Proportional to 69,678.80, 104,536.20 and 30,226.88

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Solution

The fourth proportional to 69,678.80, 104,536.20 and 30,226.88 is: 45,348.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,678.80 : 104,536.20 = 30,226.88 : x
  2. Step 2: Convert to fraction form
    69,678.80/104,536.20 = 30,226.88/x
  3. Step 3: Cross multiply
    69,678.80x = 104,536.20 × 30,226.88
  4. Step 4: Simplify right side
    69,678.80x = 3,159,803,173.06
  5. Step 5: Solve for x
    x = 3,159,803,173.06/69,678.80
  6. Step 6: Final answer
    x = 45,348.13

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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.