Home / 54,336.09-81,518.37-18,804.81

Finding the Fourth Proportional to 54,336.09, 81,518.37 and 18,804.81

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Solution

The fourth proportional to 54,336.09, 81,518.37 and 18,804.81 is: 28,212.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,336.09 : 81,518.37 = 18,804.81 : x
  2. Step 2: Convert to fraction form
    54,336.09/81,518.37 = 18,804.81/x
  3. Step 3: Cross multiply
    54,336.09x = 81,518.37 × 18,804.81
  4. Step 4: Simplify right side
    54,336.09x = 1,532,937,459.36
  5. Step 5: Solve for x
    x = 1,532,937,459.36/54,336.09
  6. Step 6: Final answer
    x = 28,212.14

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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.