Home / 66,475.26-99,732.34-19,729.36

Finding the Fourth Proportional to 66,475.26, 99,732.34 and 19,729.36

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Solution

The fourth proportional to 66,475.26, 99,732.34 and 19,729.36 is: 29,599.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,475.26 : 99,732.34 = 19,729.36 : x
  2. Step 2: Convert to fraction form
    66,475.26/99,732.34 = 19,729.36/x
  3. Step 3: Cross multiply
    66,475.26x = 99,732.34 × 19,729.36
  4. Step 4: Simplify right side
    66,475.26x = 1,967,655,239.50
  5. Step 5: Solve for x
    x = 1,967,655,239.50/66,475.26
  6. Step 6: Final answer
    x = 29,599.81

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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.