Home / 53,076.63-79,628.31-19,797.78

Finding the Fourth Proportional to 53,076.63, 79,628.31 and 19,797.78

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Solution

The fourth proportional to 53,076.63, 79,628.31 and 19,797.78 is: 29,701.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,076.63 : 79,628.31 = 19,797.78 : x
  2. Step 2: Convert to fraction form
    53,076.63/79,628.31 = 19,797.78/x
  3. Step 3: Cross multiply
    53,076.63x = 79,628.31 × 19,797.78
  4. Step 4: Simplify right side
    53,076.63x = 1,576,463,763.15
  5. Step 5: Solve for x
    x = 1,576,463,763.15/53,076.63
  6. Step 6: Final answer
    x = 29,701.66

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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.