Home / 84,108.86-125,982.37-39,669.02

Finding the Fourth Proportional to 84,108.86, 125,982.37 and 39,669.02

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Solution

The fourth proportional to 84,108.86, 125,982.37 and 39,669.02 is: 59,418.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,108.86 : 125,982.37 = 39,669.02 : x
  2. Step 2: Convert to fraction form
    84,108.86/125,982.37 = 39,669.02/x
  3. Step 3: Cross multiply
    84,108.86x = 125,982.37 × 39,669.02
  4. Step 4: Simplify right side
    84,108.86x = 4,997,597,155.18
  5. Step 5: Solve for x
    x = 4,997,597,155.18/84,108.86
  6. Step 6: Final answer
    x = 59,418.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.