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Finding the Fourth Proportional to 55,393.92, 76,444.92 and 30,243.60

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Solution

The fourth proportional to 55,393.92, 76,444.92 and 30,243.60 is: 41,736.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,393.92 : 76,444.92 = 30,243.60 : x
  2. Step 2: Convert to fraction form
    55,393.92/76,444.92 = 30,243.60/x
  3. Step 3: Cross multiply
    55,393.92x = 76,444.92 × 30,243.60
  4. Step 4: Simplify right side
    55,393.92x = 2,311,969,582.51
  5. Step 5: Solve for x
    x = 2,311,969,582.51/55,393.92
  6. Step 6: Final answer
    x = 41,736.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.