Home / 84,418.77-126,588.96-31,097.28

Finding the Fourth Proportional to 84,418.77, 126,588.96 and 31,097.28

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Solution

The fourth proportional to 84,418.77, 126,588.96 and 31,097.28 is: 46,631.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,418.77 : 126,588.96 = 31,097.28 : x
  2. Step 2: Convert to fraction form
    84,418.77/126,588.96 = 31,097.28/x
  3. Step 3: Cross multiply
    84,418.77x = 126,588.96 × 31,097.28
  4. Step 4: Simplify right side
    84,418.77x = 3,936,572,334.03
  5. Step 5: Solve for x
    x = 3,936,572,334.03/84,418.77
  6. Step 6: Final answer
    x = 46,631.48

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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.