Home / 54,390.23-81,582.01-16,945.00

Finding the Fourth Proportional to 54,390.23, 81,582.01 and 16,945.00

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Solution

The fourth proportional to 54,390.23, 81,582.01 and 16,945.00 is: 25,416.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,390.23 : 81,582.01 = 16,945.00 : x
  2. Step 2: Convert to fraction form
    54,390.23/81,582.01 = 16,945.00/x
  3. Step 3: Cross multiply
    54,390.23x = 81,582.01 × 16,945.00
  4. Step 4: Simplify right side
    54,390.23x = 1,382,406,960.79
  5. Step 5: Solve for x
    x = 1,382,406,960.79/54,390.23
  6. Step 6: Final answer
    x = 25,416.46

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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.