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Finding the Fourth Proportional to 89,048.52, 122,878.58 and 53,231.40

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Solution

The fourth proportional to 89,048.52, 122,878.58 and 53,231.40 is: 73,454.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,048.52 : 122,878.58 = 53,231.40 : x
  2. Step 2: Convert to fraction form
    89,048.52/122,878.58 = 53,231.40/x
  3. Step 3: Cross multiply
    89,048.52x = 122,878.58 × 53,231.40
  4. Step 4: Simplify right side
    89,048.52x = 6,540,998,843.41
  5. Step 5: Solve for x
    x = 6,540,998,843.41/89,048.52
  6. Step 6: Final answer
    x = 73,454.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.