Home / 53,178.41-79,798.62-19,921.83

Finding the Fourth Proportional to 53,178.41, 79,798.62 and 19,921.83

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Solution

The fourth proportional to 53,178.41, 79,798.62 and 19,921.83 is: 29,894.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,178.41 : 79,798.62 = 19,921.83 : x
  2. Step 2: Convert to fraction form
    53,178.41/79,798.62 = 19,921.83/x
  3. Step 3: Cross multiply
    53,178.41x = 79,798.62 × 19,921.83
  4. Step 4: Simplify right side
    53,178.41x = 1,589,734,442.27
  5. Step 5: Solve for x
    x = 1,589,734,442.27/53,178.41
  6. Step 6: Final answer
    x = 29,894.36

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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.