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Finding the Fourth Proportional to 56,072.01, 84,112.88 and 20,542.98

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Solution

The fourth proportional to 56,072.01, 84,112.88 and 20,542.98 is: 30,816.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,072.01 : 84,112.88 = 20,542.98 : x
  2. Step 2: Convert to fraction form
    56,072.01/84,112.88 = 20,542.98/x
  3. Step 3: Cross multiply
    56,072.01x = 84,112.88 × 20,542.98
  4. Step 4: Simplify right side
    56,072.01x = 1,727,929,108.87
  5. Step 5: Solve for x
    x = 1,727,929,108.87/56,072.01
  6. Step 6: Final answer
    x = 30,816.25

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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.