Home / 61,331.10-91,996.65-19,211.54

Finding the Fourth Proportional to 61,331.10, 91,996.65 and 19,211.54

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Solution

The fourth proportional to 61,331.10, 91,996.65 and 19,211.54 is: 28,817.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,331.10 : 91,996.65 = 19,211.54 : x
  2. Step 2: Convert to fraction form
    61,331.10/91,996.65 = 19,211.54/x
  3. Step 3: Cross multiply
    61,331.10x = 91,996.65 × 19,211.54
  4. Step 4: Simplify right side
    61,331.10x = 1,767,396,861.36
  5. Step 5: Solve for x
    x = 1,767,396,861.36/61,331.10
  6. Step 6: Final answer
    x = 28,817.30

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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.