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Finding the Fourth Proportional to 64,914.75, 89,582.76 and 39,764.25

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Solution

The fourth proportional to 64,914.75, 89,582.76 and 39,764.25 is: 54,874.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,914.75 : 89,582.76 = 39,764.25 : x
  2. Step 2: Convert to fraction form
    64,914.75/89,582.76 = 39,764.25/x
  3. Step 3: Cross multiply
    64,914.75x = 89,582.76 × 39,764.25
  4. Step 4: Simplify right side
    64,914.75x = 3,562,191,264.33
  5. Step 5: Solve for x
    x = 3,562,191,264.33/64,914.75
  6. Step 6: Final answer
    x = 54,874.91

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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.