Home / 64,947.98-89,618.60-39,441.08

Finding the Fourth Proportional to 64,947.98, 89,618.60 and 39,441.08

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Solution

The fourth proportional to 64,947.98, 89,618.60 and 39,441.08 is: 54,422.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,947.98 : 89,618.60 = 39,441.08 : x
  2. Step 2: Convert to fraction form
    64,947.98/89,618.60 = 39,441.08/x
  3. Step 3: Cross multiply
    64,947.98x = 89,618.60 × 39,441.08
  4. Step 4: Simplify right side
    64,947.98x = 3,534,654,372.09
  5. Step 5: Solve for x
    x = 3,534,654,372.09/64,947.98
  6. Step 6: Final answer
    x = 54,422.85

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1.5x scale

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.