Home / 87,848.20-121,209.78-50,134.60

Finding the Fourth Proportional to 87,848.20, 121,209.78 and 50,134.60

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Solution

The fourth proportional to 87,848.20, 121,209.78 and 50,134.60 is: 69,173.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,848.20 : 121,209.78 = 50,134.60 : x
  2. Step 2: Convert to fraction form
    87,848.20/121,209.78 = 50,134.60/x
  3. Step 3: Cross multiply
    87,848.20x = 121,209.78 × 50,134.60
  4. Step 4: Simplify right side
    87,848.20x = 6,076,803,836.39
  5. Step 5: Solve for x
    x = 6,076,803,836.39/87,848.20
  6. Step 6: Final answer
    x = 69,173.91

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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.