Home / 87,028.31-120,090.04-51,216.19

Finding the Fourth Proportional to 87,028.31, 120,090.04 and 51,216.19

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Solution

The fourth proportional to 87,028.31, 120,090.04 and 51,216.19 is: 70,673.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,028.31 : 120,090.04 = 51,216.19 : x
  2. Step 2: Convert to fraction form
    87,028.31/120,090.04 = 51,216.19/x
  3. Step 3: Cross multiply
    87,028.31x = 120,090.04 × 51,216.19
  4. Step 4: Simplify right side
    87,028.31x = 6,150,553,577.26
  5. Step 5: Solve for x
    x = 6,150,553,577.26/87,028.31
  6. Step 6: Final answer
    x = 70,673.02

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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.