Home / 53,147.20-79,726.56-19,883.20

Finding the Fourth Proportional to 53,147.20, 79,726.56 and 19,883.20

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Solution

The fourth proportional to 53,147.20, 79,726.56 and 19,883.20 is: 29,826.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,147.20 : 79,726.56 = 19,883.20 : x
  2. Step 2: Convert to fraction form
    53,147.20/79,726.56 = 19,883.20/x
  3. Step 3: Cross multiply
    53,147.20x = 79,726.56 × 19,883.20
  4. Step 4: Simplify right side
    53,147.20x = 1,585,219,137.79
  5. Step 5: Solve for x
    x = 1,585,219,137.79/53,147.20
  6. Step 6: Final answer
    x = 29,826.95

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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.