Home / 53,078.60-79,626-19,803.36

Finding the Fourth Proportional to 53,078.60, 79,626 and 19,803.36

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Solution

The fourth proportional to 53,078.60, 79,626 and 19,803.36 is: 29,708.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,078.60 : 79,626 = 19,803.36 : x
  2. Step 2: Convert to fraction form
    53,078.60/79,626 = 19,803.36/x
  3. Step 3: Cross multiply
    53,078.60x = 79,626 × 19,803.36
  4. Step 4: Simplify right side
    53,078.60x = 1,576,862,343.36
  5. Step 5: Solve for x
    x = 1,576,862,343.36/53,078.60
  6. Step 6: Final answer
    x = 29,708.06

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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.