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Finding the Fourth Proportional to 69,107.47, 103,652.98 and 40,661.44

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Solution

The fourth proportional to 69,107.47, 103,652.98 and 40,661.44 is: 60,987.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,107.47 : 103,652.98 = 40,661.44 : x
  2. Step 2: Convert to fraction form
    69,107.47/103,652.98 = 40,661.44/x
  3. Step 3: Cross multiply
    69,107.47x = 103,652.98 × 40,661.44
  4. Step 4: Simplify right side
    69,107.47x = 4,214,678,908.83
  5. Step 5: Solve for x
    x = 4,214,678,908.83/69,107.47
  6. Step 6: Final answer
    x = 60,987.31

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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.