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Finding the Fourth Proportional to 53,995.92, 81,021.20 and 36,428.84

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Solution

The fourth proportional to 53,995.92, 81,021.20 and 36,428.84 is: 54,661.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,995.92 : 81,021.20 = 36,428.84 : x
  2. Step 2: Convert to fraction form
    53,995.92/81,021.20 = 36,428.84/x
  3. Step 3: Cross multiply
    53,995.92x = 81,021.20 × 36,428.84
  4. Step 4: Simplify right side
    53,995.92x = 2,951,508,331.41
  5. Step 5: Solve for x
    x = 2,951,508,331.41/53,995.92
  6. Step 6: Final answer
    x = 54,661.69

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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.