Home / 54,051.17-81,081.08-18,998.69

Finding the Fourth Proportional to 54,051.17, 81,081.08 and 18,998.69

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Solution

The fourth proportional to 54,051.17, 81,081.08 and 18,998.69 is: 28,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,051.17 : 81,081.08 = 18,998.69 : x
  2. Step 2: Convert to fraction form
    54,051.17/81,081.08 = 18,998.69/x
  3. Step 3: Cross multiply
    54,051.17x = 81,081.08 × 18,998.69
  4. Step 4: Simplify right side
    54,051.17x = 1,540,434,208.79
  5. Step 5: Solve for x
    x = 1,540,434,208.79/54,051.17
  6. Step 6: Final answer
    x = 28,499.55

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Double scale
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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.