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Finding the Fourth Proportional to 55,999.20, 80,628.48 and 55,999.20

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Solution

The fourth proportional to 55,999.20, 80,628.48 and 55,999.20 is: 80,628.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,999.20 : 80,628.48 = 55,999.20 : x
  2. Step 2: Convert to fraction form
    55,999.20/80,628.48 = 55,999.20/x
  3. Step 3: Cross multiply
    55,999.20x = 80,628.48 × 55,999.20
  4. Step 4: Simplify right side
    55,999.20x = 4,515,130,377.22
  5. Step 5: Solve for x
    x = 4,515,130,377.22/55,999.20
  6. Step 6: Final answer
    x = 80,628.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.