Home / 87,258.80-120,413.96-53,324.09

Finding the Fourth Proportional to 87,258.80, 120,413.96 and 53,324.09

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Solution

The fourth proportional to 87,258.80, 120,413.96 and 53,324.09 is: 73,585.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,258.80 : 120,413.96 = 53,324.09 : x
  2. Step 2: Convert to fraction form
    87,258.80/120,413.96 = 53,324.09/x
  3. Step 3: Cross multiply
    87,258.80x = 120,413.96 × 53,324.09
  4. Step 4: Simplify right side
    87,258.80x = 6,420,964,623.12
  5. Step 5: Solve for x
    x = 6,420,964,623.12/87,258.80
  6. Step 6: Final answer
    x = 73,585.29

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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.