Home / 61,199.05-91,777.78-21,208.72

Finding the Fourth Proportional to 61,199.05, 91,777.78 and 21,208.72

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Solution

The fourth proportional to 61,199.05, 91,777.78 and 21,208.72 is: 31,805.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,199.05 : 91,777.78 = 21,208.72 : x
  2. Step 2: Convert to fraction form
    61,199.05/91,777.78 = 21,208.72/x
  3. Step 3: Cross multiply
    61,199.05x = 91,777.78 × 21,208.72
  4. Step 4: Simplify right side
    61,199.05x = 1,946,489,267.04
  5. Step 5: Solve for x
    x = 1,946,489,267.04/61,199.05
  6. Step 6: Final answer
    x = 31,805.87

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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.