Home / 83,431.20-125,091.53-46,009.20

Finding the Fourth Proportional to 83,431.20, 125,091.53 and 46,009.20

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Solution

The fourth proportional to 83,431.20, 125,091.53 and 46,009.20 is: 68,983.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,431.20 : 125,091.53 = 46,009.20 : x
  2. Step 2: Convert to fraction form
    83,431.20/125,091.53 = 46,009.20/x
  3. Step 3: Cross multiply
    83,431.20x = 125,091.53 × 46,009.20
  4. Step 4: Simplify right side
    83,431.20x = 5,755,360,992.03
  5. Step 5: Solve for x
    x = 5,755,360,992.03/83,431.20
  6. Step 6: Final answer
    x = 68,983.32

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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.