Home / 86,271.46-118,418.48-76,629.22

Finding the Fourth Proportional to 86,271.46, 118,418.48 and 76,629.22

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Solution

The fourth proportional to 86,271.46, 118,418.48 and 76,629.22 is: 105,183.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,271.46 : 118,418.48 = 76,629.22 : x
  2. Step 2: Convert to fraction form
    86,271.46/118,418.48 = 76,629.22/x
  3. Step 3: Cross multiply
    86,271.46x = 118,418.48 × 76,629.22
  4. Step 4: Simplify right side
    86,271.46x = 9,074,315,755.99
  5. Step 5: Solve for x
    x = 9,074,315,755.99/86,271.46
  6. Step 6: Final answer
    x = 105,183.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.