Home / 69,012.56-103,518.87-21,631.35

Finding the Fourth Proportional to 69,012.56, 103,518.87 and 21,631.35

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Solution

The fourth proportional to 69,012.56, 103,518.87 and 21,631.35 is: 32,447.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,012.56 : 103,518.87 = 21,631.35 : x
  2. Step 2: Convert to fraction form
    69,012.56/103,518.87 = 21,631.35/x
  3. Step 3: Cross multiply
    69,012.56x = 103,518.87 × 21,631.35
  4. Step 4: Simplify right side
    69,012.56x = 2,239,252,390.98
  5. Step 5: Solve for x
    x = 2,239,252,390.98/69,012.56
  6. Step 6: Final answer
    x = 32,447.03

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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.