Home / 87,942.51-121,424.07-53,997.03

Finding the Fourth Proportional to 87,942.51, 121,424.07 and 53,997.03

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Solution

The fourth proportional to 87,942.51, 121,424.07 and 53,997.03 is: 74,554.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,942.51 : 121,424.07 = 53,997.03 : x
  2. Step 2: Convert to fraction form
    87,942.51/121,424.07 = 53,997.03/x
  3. Step 3: Cross multiply
    87,942.51x = 121,424.07 × 53,997.03
  4. Step 4: Simplify right side
    87,942.51x = 6,556,539,150.51
  5. Step 5: Solve for x
    x = 6,556,539,150.51/87,942.51
  6. Step 6: Final answer
    x = 74,554.83

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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.