Home / 87,847.20-121,208.40-50,133.60

Finding the Fourth Proportional to 87,847.20, 121,208.40 and 50,133.60

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Solution

The fourth proportional to 87,847.20, 121,208.40 and 50,133.60 is: 69,172.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,847.20 : 121,208.40 = 50,133.60 : x
  2. Step 2: Convert to fraction form
    87,847.20/121,208.40 = 50,133.60/x
  3. Step 3: Cross multiply
    87,847.20x = 121,208.40 × 50,133.60
  4. Step 4: Simplify right side
    87,847.20x = 6,076,613,442.24
  5. Step 5: Solve for x
    x = 6,076,613,442.24/87,847.20
  6. Step 6: Final answer
    x = 69,172.53

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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.