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Finding the Fourth Proportional to 54,525.54, 81,797.79 and 21,263.70

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Solution

The fourth proportional to 54,525.54, 81,797.79 and 21,263.70 is: 31,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,525.54 : 81,797.79 = 21,263.70 : x
  2. Step 2: Convert to fraction form
    54,525.54/81,797.79 = 21,263.70/x
  3. Step 3: Cross multiply
    54,525.54x = 81,797.79 × 21,263.70
  4. Step 4: Simplify right side
    54,525.54x = 1,739,323,667.22
  5. Step 5: Solve for x
    x = 1,739,323,667.22/54,525.54
  6. Step 6: Final answer
    x = 31,899.25

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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.