Home / 86,882.96-130,315.80-40,135.16

Finding the Fourth Proportional to 86,882.96, 130,315.80 and 40,135.16

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Solution

The fourth proportional to 86,882.96, 130,315.80 and 40,135.16 is: 60,198.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,882.96 : 130,315.80 = 40,135.16 : x
  2. Step 2: Convert to fraction form
    86,882.96/130,315.80 = 40,135.16/x
  3. Step 3: Cross multiply
    86,882.96x = 130,315.80 × 40,135.16
  4. Step 4: Simplify right side
    86,882.96x = 5,230,245,483.53
  5. Step 5: Solve for x
    x = 5,230,245,483.53/86,882.96
  6. Step 6: Final answer
    x = 60,198.75

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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.