Home / 75,979.09-104,845.89-41,987.25

Finding the Fourth Proportional to 75,979.09, 104,845.89 and 41,987.25

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Solution

The fourth proportional to 75,979.09, 104,845.89 and 41,987.25 is: 57,939.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,979.09 : 104,845.89 = 41,987.25 : x
  2. Step 2: Convert to fraction form
    75,979.09/104,845.89 = 41,987.25/x
  3. Step 3: Cross multiply
    75,979.09x = 104,845.89 × 41,987.25
  4. Step 4: Simplify right side
    75,979.09x = 4,402,190,752.35
  5. Step 5: Solve for x
    x = 4,402,190,752.35/75,979.09
  6. Step 6: Final answer
    x = 57,939.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.