Home / 77,086.20-115,629.30-35,614.20

Finding the Fourth Proportional to 77,086.20, 115,629.30 and 35,614.20

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Solution

The fourth proportional to 77,086.20, 115,629.30 and 35,614.20 is: 53,421.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,086.20 : 115,629.30 = 35,614.20 : x
  2. Step 2: Convert to fraction form
    77,086.20/115,629.30 = 35,614.20/x
  3. Step 3: Cross multiply
    77,086.20x = 115,629.30 × 35,614.20
  4. Step 4: Simplify right side
    77,086.20x = 4,118,045,016.06
  5. Step 5: Solve for x
    x = 4,118,045,016.06/77,086.20
  6. Step 6: Final answer
    x = 53,421.30

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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.