Home / 69,820.16-104,714.46-19,899.18

Finding the Fourth Proportional to 69,820.16, 104,714.46 and 19,899.18

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Solution

The fourth proportional to 69,820.16, 104,714.46 and 19,899.18 is: 29,844.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,820.16 : 104,714.46 = 19,899.18 : x
  2. Step 2: Convert to fraction form
    69,820.16/104,714.46 = 19,899.18/x
  3. Step 3: Cross multiply
    69,820.16x = 104,714.46 × 19,899.18
  4. Step 4: Simplify right side
    69,820.16x = 2,083,731,888.14
  5. Step 5: Solve for x
    x = 2,083,731,888.14/69,820.16
  6. Step 6: Final answer
    x = 29,844.27

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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.