Home / 53,654.09-80,481.58-20,365.21

Finding the Fourth Proportional to 53,654.09, 80,481.58 and 20,365.21

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Solution

The fourth proportional to 53,654.09, 80,481.58 and 20,365.21 is: 30,547.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,654.09 : 80,481.58 = 20,365.21 : x
  2. Step 2: Convert to fraction form
    53,654.09/80,481.58 = 20,365.21/x
  3. Step 3: Cross multiply
    53,654.09x = 80,481.58 × 20,365.21
  4. Step 4: Simplify right side
    53,654.09x = 1,639,024,277.83
  5. Step 5: Solve for x
    x = 1,639,024,277.83/53,654.09
  6. Step 6: Final answer
    x = 30,547.99

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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.