Home / 40,696.65-61,138.50-28,879.56

Finding the Fourth Proportional to 40,696.65, 61,138.50 and 28,879.56

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Solution

The fourth proportional to 40,696.65, 61,138.50 and 28,879.56 is: 43,385.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,696.65 : 61,138.50 = 28,879.56 : x
  2. Step 2: Convert to fraction form
    40,696.65/61,138.50 = 28,879.56/x
  3. Step 3: Cross multiply
    40,696.65x = 61,138.50 × 28,879.56
  4. Step 4: Simplify right side
    40,696.65x = 1,765,653,042.71
  5. Step 5: Solve for x
    x = 1,765,653,042.71/40,696.65
  6. Step 6: Final answer
    x = 43,385.71

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1.5x scale

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.