Home / 87,967.64-121,401.78-50,241.08

Finding the Fourth Proportional to 87,967.64, 121,401.78 and 50,241.08

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Solution

The fourth proportional to 87,967.64, 121,401.78 and 50,241.08 is: 69,336.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,967.64 : 121,401.78 = 50,241.08 : x
  2. Step 2: Convert to fraction form
    87,967.64/121,401.78 = 50,241.08/x
  3. Step 3: Cross multiply
    87,967.64x = 121,401.78 × 50,241.08
  4. Step 4: Simplify right side
    87,967.64x = 6,099,356,541.12
  5. Step 5: Solve for x
    x = 6,099,356,541.12/87,967.64
  6. Step 6: Final answer
    x = 69,336.37

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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.