Home / 69,539.40-104,309.10-66,817.80

Finding the Fourth Proportional to 69,539.40, 104,309.10 and 66,817.80

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Solution

The fourth proportional to 69,539.40, 104,309.10 and 66,817.80 is: 100,226.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,539.40 : 104,309.10 = 66,817.80 : x
  2. Step 2: Convert to fraction form
    69,539.40/104,309.10 = 66,817.80/x
  3. Step 3: Cross multiply
    69,539.40x = 104,309.10 × 66,817.80
  4. Step 4: Simplify right side
    69,539.40x = 6,969,704,581.98
  5. Step 5: Solve for x
    x = 6,969,704,581.98/69,539.40
  6. Step 6: Final answer
    x = 100,226.70

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1.5x scale

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.