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Finding the Fourth Proportional to 69,871.60, 104,807.40 and 67,927.60

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Solution

The fourth proportional to 69,871.60, 104,807.40 and 67,927.60 is: 101,891.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,871.60 : 104,807.40 = 67,927.60 : x
  2. Step 2: Convert to fraction form
    69,871.60/104,807.40 = 67,927.60/x
  3. Step 3: Cross multiply
    69,871.60x = 104,807.40 × 67,927.60
  4. Step 4: Simplify right side
    69,871.60x = 7,119,315,144.24
  5. Step 5: Solve for x
    x = 7,119,315,144.24/69,871.60
  6. Step 6: Final answer
    x = 101,891.40

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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.