Home / 87,998.00-121,436.51-49,765.05

Finding the Fourth Proportional to 87,998.00, 121,436.51 and 49,765.05

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Solution

The fourth proportional to 87,998.00, 121,436.51 and 49,765.05 is: 68,675.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,998.00 : 121,436.51 = 49,765.05 : x
  2. Step 2: Convert to fraction form
    87,998.00/121,436.51 = 49,765.05/x
  3. Step 3: Cross multiply
    87,998.00x = 121,436.51 × 49,765.05
  4. Step 4: Simplify right side
    87,998.00x = 6,043,294,200.17
  5. Step 5: Solve for x
    x = 6,043,294,200.17/87,998.00
  6. Step 6: Final answer
    x = 68,675.36

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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.