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Finding the Fourth Proportional to 54,357.39, 81,525.78 and 16,917.93

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Solution

The fourth proportional to 54,357.39, 81,525.78 and 16,917.93 is: 25,373.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,357.39 : 81,525.78 = 16,917.93 : x
  2. Step 2: Convert to fraction form
    54,357.39/81,525.78 = 16,917.93/x
  3. Step 3: Cross multiply
    54,357.39x = 81,525.78 × 16,917.93
  4. Step 4: Simplify right side
    54,357.39x = 1,379,247,439.24
  5. Step 5: Solve for x
    x = 1,379,247,439.24/54,357.39
  6. Step 6: Final answer
    x = 25,373.69

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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.