Home / 53,268.88-79,882.56-19,970.78

Finding the Fourth Proportional to 53,268.88, 79,882.56 and 19,970.78

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Solution

The fourth proportional to 53,268.88, 79,882.56 and 19,970.78 is: 29,948.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,268.88 : 79,882.56 = 19,970.78 : x
  2. Step 2: Convert to fraction form
    53,268.88/79,882.56 = 19,970.78/x
  3. Step 3: Cross multiply
    53,268.88x = 79,882.56 × 19,970.78
  4. Step 4: Simplify right side
    53,268.88x = 1,595,317,031.60
  5. Step 5: Solve for x
    x = 1,595,317,031.60/53,268.88
  6. Step 6: Final answer
    x = 29,948.39

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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.