Home / 64,741.12-89,299.20-39,546.88

Finding the Fourth Proportional to 64,741.12, 89,299.20 and 39,546.88

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Solution

The fourth proportional to 64,741.12, 89,299.20 and 39,546.88 is: 54,548.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,741.12 : 89,299.20 = 39,546.88 : x
  2. Step 2: Convert to fraction form
    64,741.12/89,299.20 = 39,546.88/x
  3. Step 3: Cross multiply
    64,741.12x = 89,299.20 × 39,546.88
  4. Step 4: Simplify right side
    64,741.12x = 3,531,504,746.50
  5. Step 5: Solve for x
    x = 3,531,504,746.50/64,741.12
  6. Step 6: Final answer
    x = 54,548.09

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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.