Home / 53,188.97-79,807.67-19,911.62

Finding the Fourth Proportional to 53,188.97, 79,807.67 and 19,911.62

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Solution

The fourth proportional to 53,188.97, 79,807.67 and 19,911.62 is: 29,876.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,188.97 : 79,807.67 = 19,911.62 : x
  2. Step 2: Convert to fraction form
    53,188.97/79,807.67 = 19,911.62/x
  3. Step 3: Cross multiply
    53,188.97x = 79,807.67 × 19,911.62
  4. Step 4: Simplify right side
    53,188.97x = 1,589,100,144.75
  5. Step 5: Solve for x
    x = 1,589,100,144.75/53,188.97
  6. Step 6: Final answer
    x = 29,876.50

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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.