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Finding the Fourth Proportional to 56,050.72, 84,059.64 and 20,982.16

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Solution

The fourth proportional to 56,050.72, 84,059.64 and 20,982.16 is: 31,467.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,050.72 : 84,059.64 = 20,982.16 : x
  2. Step 2: Convert to fraction form
    56,050.72/84,059.64 = 20,982.16/x
  3. Step 3: Cross multiply
    56,050.72x = 84,059.64 × 20,982.16
  4. Step 4: Simplify right side
    56,050.72x = 1,763,752,816.02
  5. Step 5: Solve for x
    x = 1,763,752,816.02/56,050.72
  6. Step 6: Final answer
    x = 31,467.09

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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.