Home / 54,171.60-81,259.68-19,111.44

Finding the Fourth Proportional to 54,171.60, 81,259.68 and 19,111.44

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Solution

The fourth proportional to 54,171.60, 81,259.68 and 19,111.44 is: 28,667.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,171.60 : 81,259.68 = 19,111.44 : x
  2. Step 2: Convert to fraction form
    54,171.60/81,259.68 = 19,111.44/x
  3. Step 3: Cross multiply
    54,171.60x = 81,259.68 × 19,111.44
  4. Step 4: Simplify right side
    54,171.60x = 1,552,989,498.74
  5. Step 5: Solve for x
    x = 1,552,989,498.74/54,171.60
  6. Step 6: Final answer
    x = 28,667.96

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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.