Home / 87,968.28-121,412.50-50,242.54

Finding the Fourth Proportional to 87,968.28, 121,412.50 and 50,242.54

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Solution

The fourth proportional to 87,968.28, 121,412.50 and 50,242.54 is: 69,344.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,968.28 : 121,412.50 = 50,242.54 : x
  2. Step 2: Convert to fraction form
    87,968.28/121,412.50 = 50,242.54/x
  3. Step 3: Cross multiply
    87,968.28x = 121,412.50 × 50,242.54
  4. Step 4: Simplify right side
    87,968.28x = 6,100,072,387.75
  5. Step 5: Solve for x
    x = 6,100,072,387.75/87,968.28
  6. Step 6: Final answer
    x = 69,344.00

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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.