Home / 53,219.54-79,829.40-19,943.12

Finding the Fourth Proportional to 53,219.54, 79,829.40 and 19,943.12

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Solution

The fourth proportional to 53,219.54, 79,829.40 and 19,943.12 is: 29,914.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,219.54 : 79,829.40 = 19,943.12 : x
  2. Step 2: Convert to fraction form
    53,219.54/79,829.40 = 19,943.12/x
  3. Step 3: Cross multiply
    53,219.54x = 79,829.40 × 19,943.12
  4. Step 4: Simplify right side
    53,219.54x = 1,592,047,303.73
  5. Step 5: Solve for x
    x = 1,592,047,303.73/53,219.54
  6. Step 6: Final answer
    x = 29,914.71

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Similar ratio
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1.5x scale

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.