Home / 86,863.04-130,315.78-27,698.72

Finding the Fourth Proportional to 86,863.04, 130,315.78 and 27,698.72

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Solution

The fourth proportional to 86,863.04, 130,315.78 and 27,698.72 is: 41,554.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,863.04 : 130,315.78 = 27,698.72 : x
  2. Step 2: Convert to fraction form
    86,863.04/130,315.78 = 27,698.72/x
  3. Step 3: Cross multiply
    86,863.04x = 130,315.78 × 27,698.72
  4. Step 4: Simplify right side
    86,863.04x = 3,609,580,301.80
  5. Step 5: Solve for x
    x = 3,609,580,301.80/86,863.04
  6. Step 6: Final answer
    x = 41,554.85

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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.