Home / 53,618.40-80,427.60-18,546.40

Finding the Fourth Proportional to 53,618.40, 80,427.60 and 18,546.40

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Solution

The fourth proportional to 53,618.40, 80,427.60 and 18,546.40 is: 27,819.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,618.40 : 80,427.60 = 18,546.40 : x
  2. Step 2: Convert to fraction form
    53,618.40/80,427.60 = 18,546.40/x
  3. Step 3: Cross multiply
    53,618.40x = 80,427.60 × 18,546.40
  4. Step 4: Simplify right side
    53,618.40x = 1,491,642,440.64
  5. Step 5: Solve for x
    x = 1,491,642,440.64/53,618.40
  6. Step 6: Final answer
    x = 27,819.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.