Home / 89,606.86-123,642.05-53,816.60

Finding the Fourth Proportional to 89,606.86, 123,642.05 and 53,816.60

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Solution

The fourth proportional to 89,606.86, 123,642.05 and 53,816.60 is: 74,257.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,606.86 : 123,642.05 = 53,816.60 : x
  2. Step 2: Convert to fraction form
    89,606.86/123,642.05 = 53,816.60/x
  3. Step 3: Cross multiply
    89,606.86x = 123,642.05 × 53,816.60
  4. Step 4: Simplify right side
    89,606.86x = 6,653,994,788.05
  5. Step 5: Solve for x
    x = 6,653,994,788.05/89,606.86
  6. Step 6: Final answer
    x = 74,257.65

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Why These Related Problems?

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