Home / 87,985.60-121,427.04-50,272

Finding the Fourth Proportional to 87,985.60, 121,427.04 and 50,272

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Solution

The fourth proportional to 87,985.60, 121,427.04 and 50,272 is: 69,379.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,985.60 : 121,427.04 = 50,272 : x
  2. Step 2: Convert to fraction form
    87,985.60/121,427.04 = 50,272/x
  3. Step 3: Cross multiply
    87,985.60x = 121,427.04 × 50,272
  4. Step 4: Simplify right side
    87,985.60x = 6,104,380,154.88
  5. Step 5: Solve for x
    x = 6,104,380,154.88/87,985.60
  6. Step 6: Final answer
    x = 69,379.31

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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.