Home / 69,666.40-104,456.40-40,069.60

Finding the Fourth Proportional to 69,666.40, 104,456.40 and 40,069.60

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Solution

The fourth proportional to 69,666.40, 104,456.40 and 40,069.60 is: 60,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,666.40 : 104,456.40 = 40,069.60 : x
  2. Step 2: Convert to fraction form
    69,666.40/104,456.40 = 40,069.60/x
  3. Step 3: Cross multiply
    69,666.40x = 104,456.40 × 40,069.60
  4. Step 4: Simplify right side
    69,666.40x = 4,185,526,165.44
  5. Step 5: Solve for x
    x = 4,185,526,165.44/69,666.40
  6. Step 6: Final answer
    x = 60,079.55

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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.