Home / 69,810.40-104,714.22-19,890.82

Finding the Fourth Proportional to 69,810.40, 104,714.22 and 19,890.82

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Solution

The fourth proportional to 69,810.40, 104,714.22 and 19,890.82 is: 29,835.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,810.40 : 104,714.22 = 19,890.82 : x
  2. Step 2: Convert to fraction form
    69,810.40/104,714.22 = 19,890.82/x
  3. Step 3: Cross multiply
    69,810.40x = 104,714.22 × 19,890.82
  4. Step 4: Simplify right side
    69,810.40x = 2,082,851,701.46
  5. Step 5: Solve for x
    x = 2,082,851,701.46/69,810.40
  6. Step 6: Final answer
    x = 29,835.84

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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.