Home / 69,790.32-104,684.13-19,870.74

Finding the Fourth Proportional to 69,790.32, 104,684.13 and 19,870.74

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Solution

The fourth proportional to 69,790.32, 104,684.13 and 19,870.74 is: 29,805.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,790.32 : 104,684.13 = 19,870.74 : x
  2. Step 2: Convert to fraction form
    69,790.32/104,684.13 = 19,870.74/x
  3. Step 3: Cross multiply
    69,790.32x = 104,684.13 × 19,870.74
  4. Step 4: Simplify right side
    69,790.32x = 2,080,151,129.36
  5. Step 5: Solve for x
    x = 2,080,151,129.36/69,790.32
  6. Step 6: Final answer
    x = 29,805.73

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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.