Home / 54,403.64-81,556.21-19,335.09

Finding the Fourth Proportional to 54,403.64, 81,556.21 and 19,335.09

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Solution

The fourth proportional to 54,403.64, 81,556.21 and 19,335.09 is: 28,985.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,403.64 : 81,556.21 = 19,335.09 : x
  2. Step 2: Convert to fraction form
    54,403.64/81,556.21 = 19,335.09/x
  3. Step 3: Cross multiply
    54,403.64x = 81,556.21 × 19,335.09
  4. Step 4: Simplify right side
    54,403.64x = 1,576,896,660.41
  5. Step 5: Solve for x
    x = 1,576,896,660.41/54,403.64
  6. Step 6: Final answer
    x = 28,985.13

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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.