Home / 54,051.55-81,081.64-18,999.07

Finding the Fourth Proportional to 54,051.55, 81,081.64 and 18,999.07

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Solution

The fourth proportional to 54,051.55, 81,081.64 and 18,999.07 is: 28,500.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,051.55 : 81,081.64 = 18,999.07 : x
  2. Step 2: Convert to fraction form
    54,051.55/81,081.64 = 18,999.07/x
  3. Step 3: Cross multiply
    54,051.55x = 81,081.64 × 18,999.07
  4. Step 4: Simplify right side
    54,051.55x = 1,540,475,754.07
  5. Step 5: Solve for x
    x = 1,540,475,754.07/54,051.55
  6. Step 6: Final answer
    x = 28,500.12

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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.