Home / 66,197.28-99,240.10-28,729.11

Finding the Fourth Proportional to 66,197.28, 99,240.10 and 28,729.11

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Solution

The fourth proportional to 66,197.28, 99,240.10 and 28,729.11 is: 43,069.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,197.28 : 99,240.10 = 28,729.11 : x
  2. Step 2: Convert to fraction form
    66,197.28/99,240.10 = 28,729.11/x
  3. Step 3: Cross multiply
    66,197.28x = 99,240.10 × 28,729.11
  4. Step 4: Simplify right side
    66,197.28x = 2,851,079,749.31
  5. Step 5: Solve for x
    x = 2,851,079,749.31/66,197.28
  6. Step 6: Final answer
    x = 43,069.44

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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.