Home / 86,623.38-129,986.90-37,375.38

Finding the Fourth Proportional to 86,623.38, 129,986.90 and 37,375.38

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Solution

The fourth proportional to 86,623.38, 129,986.90 and 37,375.38 is: 56,085.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,623.38 : 129,986.90 = 37,375.38 : x
  2. Step 2: Convert to fraction form
    86,623.38/129,986.90 = 37,375.38/x
  3. Step 3: Cross multiply
    86,623.38x = 129,986.90 × 37,375.38
  4. Step 4: Simplify right side
    86,623.38x = 4,858,309,782.52
  5. Step 5: Solve for x
    x = 4,858,309,782.52/86,623.38
  6. Step 6: Final answer
    x = 56,085.43

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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.