Home / 40,986.81-61,509.42-31,636.17

Finding the Fourth Proportional to 40,986.81, 61,509.42 and 31,636.17

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Solution

The fourth proportional to 40,986.81, 61,509.42 and 31,636.17 is: 47,476.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,986.81 : 61,509.42 = 31,636.17 : x
  2. Step 2: Convert to fraction form
    40,986.81/61,509.42 = 31,636.17/x
  3. Step 3: Cross multiply
    40,986.81x = 61,509.42 × 31,636.17
  4. Step 4: Simplify right side
    40,986.81x = 1,945,922,467.72
  5. Step 5: Solve for x
    x = 1,945,922,467.72/40,986.81
  6. Step 6: Final answer
    x = 47,476.80

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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.