Home / 54,342.19-81,455.74-18,284.32

Finding the Fourth Proportional to 54,342.19, 81,455.74 and 18,284.32

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Solution

The fourth proportional to 54,342.19, 81,455.74 and 18,284.32 is: 27,407.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,342.19 : 81,455.74 = 18,284.32 : x
  2. Step 2: Convert to fraction form
    54,342.19/81,455.74 = 18,284.32/x
  3. Step 3: Cross multiply
    54,342.19x = 81,455.74 × 18,284.32
  4. Step 4: Simplify right side
    54,342.19x = 1,489,362,816.00
  5. Step 5: Solve for x
    x = 1,489,362,816.00/54,342.19
  6. Step 6: Final answer
    x = 27,407.12

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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.