Home / 87,968.55-121,412.85-50,242.80

Finding the Fourth Proportional to 87,968.55, 121,412.85 and 50,242.80

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Solution

The fourth proportional to 87,968.55, 121,412.85 and 50,242.80 is: 69,344.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,968.55 : 121,412.85 = 50,242.80 : x
  2. Step 2: Convert to fraction form
    87,968.55/121,412.85 = 50,242.80/x
  3. Step 3: Cross multiply
    87,968.55x = 121,412.85 × 50,242.80
  4. Step 4: Simplify right side
    87,968.55x = 6,100,121,539.98
  5. Step 5: Solve for x
    x = 6,100,121,539.98/87,968.55
  6. Step 6: Final answer
    x = 69,344.35

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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.