Home / 66,514.56-99,754.80-19,756.50

Finding the Fourth Proportional to 66,514.56, 99,754.80 and 19,756.50

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Solution

The fourth proportional to 66,514.56, 99,754.80 and 19,756.50 is: 29,629.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,514.56 : 99,754.80 = 19,756.50 : x
  2. Step 2: Convert to fraction form
    66,514.56/99,754.80 = 19,756.50/x
  3. Step 3: Cross multiply
    66,514.56x = 99,754.80 × 19,756.50
  4. Step 4: Simplify right side
    66,514.56x = 1,970,805,706.20
  5. Step 5: Solve for x
    x = 1,970,805,706.20/66,514.56
  6. Step 6: Final answer
    x = 29,629.69

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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.