Home / 54,216.36-81,319.74-19,154.28

Finding the Fourth Proportional to 54,216.36, 81,319.74 and 19,154.28

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Solution

The fourth proportional to 54,216.36, 81,319.74 and 19,154.28 is: 28,729.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,216.36 : 81,319.74 = 19,154.28 : x
  2. Step 2: Convert to fraction form
    54,216.36/81,319.74 = 19,154.28/x
  3. Step 3: Cross multiply
    54,216.36x = 81,319.74 × 19,154.28
  4. Step 4: Simplify right side
    54,216.36x = 1,557,621,069.49
  5. Step 5: Solve for x
    x = 1,557,621,069.49/54,216.36
  6. Step 6: Final answer
    x = 28,729.72

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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.