Home / 86,790.36-130,017.41-49,236.84

Finding the Fourth Proportional to 86,790.36, 130,017.41 and 49,236.84

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Solution

The fourth proportional to 86,790.36, 130,017.41 and 49,236.84 is: 73,759.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,790.36 : 130,017.41 = 49,236.84 : x
  2. Step 2: Convert to fraction form
    86,790.36/130,017.41 = 49,236.84/x
  3. Step 3: Cross multiply
    86,790.36x = 130,017.41 × 49,236.84
  4. Step 4: Simplify right side
    86,790.36x = 6,401,646,413.38
  5. Step 5: Solve for x
    x = 6,401,646,413.38/86,790.36
  6. Step 6: Final answer
    x = 73,759.88

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1.5x scale

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.