Home / 40,790.64-61,170.59-19,723.68

Finding the Fourth Proportional to 40,790.64, 61,170.59 and 19,723.68

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Solution

The fourth proportional to 40,790.64, 61,170.59 and 19,723.68 is: 29,578.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,790.64 : 61,170.59 = 19,723.68 : x
  2. Step 2: Convert to fraction form
    40,790.64/61,170.59 = 19,723.68/x
  3. Step 3: Cross multiply
    40,790.64x = 61,170.59 × 19,723.68
  4. Step 4: Simplify right side
    40,790.64x = 1,206,509,043.95
  5. Step 5: Solve for x
    x = 1,206,509,043.95/40,790.64
  6. Step 6: Final answer
    x = 29,578.09

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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.