Home / 84,407.77-126,574.39-31,100.05

Finding the Fourth Proportional to 84,407.77, 126,574.39 and 31,100.05

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Solution

The fourth proportional to 84,407.77, 126,574.39 and 31,100.05 is: 46,636.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,407.77 : 126,574.39 = 31,100.05 : x
  2. Step 2: Convert to fraction form
    84,407.77/126,574.39 = 31,100.05/x
  3. Step 3: Cross multiply
    84,407.77x = 126,574.39 × 31,100.05
  4. Step 4: Simplify right side
    84,407.77x = 3,936,469,857.72
  5. Step 5: Solve for x
    x = 3,936,469,857.72/84,407.77
  6. Step 6: Final answer
    x = 46,636.34

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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.