Home / 82,743.69-124,145.60-40,619.32

Finding the Fourth Proportional to 82,743.69, 124,145.60 and 40,619.32

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Solution

The fourth proportional to 82,743.69, 124,145.60 and 40,619.32 is: 60,943.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,743.69 : 124,145.60 = 40,619.32 : x
  2. Step 2: Convert to fraction form
    82,743.69/124,145.60 = 40,619.32/x
  3. Step 3: Cross multiply
    82,743.69x = 124,145.60 × 40,619.32
  4. Step 4: Simplify right side
    82,743.69x = 5,042,709,852.99
  5. Step 5: Solve for x
    x = 5,042,709,852.99/82,743.69
  6. Step 6: Final answer
    x = 60,943.74

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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.