Home / 54,054.72-81,048.96-18,998.40

Finding the Fourth Proportional to 54,054.72, 81,048.96 and 18,998.40

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Solution

The fourth proportional to 54,054.72, 81,048.96 and 18,998.40 is: 28,485.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,054.72 : 81,048.96 = 18,998.40 : x
  2. Step 2: Convert to fraction form
    54,054.72/81,048.96 = 18,998.40/x
  3. Step 3: Cross multiply
    54,054.72x = 81,048.96 × 18,998.40
  4. Step 4: Simplify right side
    54,054.72x = 1,539,800,561.66
  5. Step 5: Solve for x
    x = 1,539,800,561.66/54,054.72
  6. Step 6: Final answer
    x = 28,485.96

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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.