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Finding the Fourth Proportional to 66,277.99, 99,406.25 and 21,297.22

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Solution

The fourth proportional to 66,277.99, 99,406.25 and 21,297.22 is: 31,942.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,277.99 : 99,406.25 = 21,297.22 : x
  2. Step 2: Convert to fraction form
    66,277.99/99,406.25 = 21,297.22/x
  3. Step 3: Cross multiply
    66,277.99x = 99,406.25 × 21,297.22
  4. Step 4: Simplify right side
    66,277.99x = 2,117,076,420.62
  5. Step 5: Solve for x
    x = 2,117,076,420.62/66,277.99
  6. Step 6: Final answer
    x = 31,942.38

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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.