Home / 87,496.58-120,703.28-57,268.60

Finding the Fourth Proportional to 87,496.58, 120,703.28 and 57,268.60

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Solution

The fourth proportional to 87,496.58, 120,703.28 and 57,268.60 is: 79,003.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,496.58 : 120,703.28 = 57,268.60 : x
  2. Step 2: Convert to fraction form
    87,496.58/120,703.28 = 57,268.60/x
  3. Step 3: Cross multiply
    87,496.58x = 120,703.28 × 57,268.60
  4. Step 4: Simplify right side
    87,496.58x = 6,912,507,861.01
  5. Step 5: Solve for x
    x = 6,912,507,861.01/87,496.58
  6. Step 6: Final answer
    x = 79,003.18

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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.