Home / 87,090.25-120,185.94-48,858.31

Finding the Fourth Proportional to 87,090.25, 120,185.94 and 48,858.31

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Solution

The fourth proportional to 87,090.25, 120,185.94 and 48,858.31 is: 67,425.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,090.25 : 120,185.94 = 48,858.31 : x
  2. Step 2: Convert to fraction form
    87,090.25/120,185.94 = 48,858.31/x
  3. Step 3: Cross multiply
    87,090.25x = 120,185.94 × 48,858.31
  4. Step 4: Simplify right side
    87,090.25x = 5,872,081,914.16
  5. Step 5: Solve for x
    x = 5,872,081,914.16/87,090.25
  6. Step 6: Final answer
    x = 67,425.25

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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.