Home / 87,968.48-121,412.74-50,242.72

Finding the Fourth Proportional to 87,968.48, 121,412.74 and 50,242.72

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Solution

The fourth proportional to 87,968.48, 121,412.74 and 50,242.72 is: 69,344.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,968.48 : 121,412.74 = 50,242.72 : x
  2. Step 2: Convert to fraction form
    87,968.48/121,412.74 = 50,242.72/x
  3. Step 3: Cross multiply
    87,968.48x = 121,412.74 × 50,242.72
  4. Step 4: Simplify right side
    87,968.48x = 6,100,106,300.25
  5. Step 5: Solve for x
    x = 6,100,106,300.25/87,968.48
  6. Step 6: Final answer
    x = 69,344.23

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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.