Home / 64,947.86-89,618.43-39,440.96

Finding the Fourth Proportional to 64,947.86, 89,618.43 and 39,440.96

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Solution

The fourth proportional to 64,947.86, 89,618.43 and 39,440.96 is: 54,422.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,947.86 : 89,618.43 = 39,440.96 : x
  2. Step 2: Convert to fraction form
    64,947.86/89,618.43 = 39,440.96/x
  3. Step 3: Cross multiply
    64,947.86x = 89,618.43 × 39,440.96
  4. Step 4: Simplify right side
    64,947.86x = 3,534,636,464.80
  5. Step 5: Solve for x
    x = 3,534,636,464.80/64,947.86
  6. Step 6: Final answer
    x = 54,422.68

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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.