Home / 86,790.62-130,017.78-49,237.09

Finding the Fourth Proportional to 86,790.62, 130,017.78 and 49,237.09

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Solution

The fourth proportional to 86,790.62, 130,017.78 and 49,237.09 is: 73,760.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,790.62 : 130,017.78 = 49,237.09 : x
  2. Step 2: Convert to fraction form
    86,790.62/130,017.78 = 49,237.09/x
  3. Step 3: Cross multiply
    86,790.62x = 130,017.78 × 49,237.09
  4. Step 4: Simplify right side
    86,790.62x = 6,401,697,135.46
  5. Step 5: Solve for x
    x = 6,401,697,135.46/86,790.62
  6. Step 6: Final answer
    x = 73,760.24

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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.