Home / 81,699.36-122,559.48-29,114.16

Finding the Fourth Proportional to 81,699.36, 122,559.48 and 29,114.16

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Solution

The fourth proportional to 81,699.36, 122,559.48 and 29,114.16 is: 43,674.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,699.36 : 122,559.48 = 29,114.16 : x
  2. Step 2: Convert to fraction form
    81,699.36/122,559.48 = 29,114.16/x
  3. Step 3: Cross multiply
    81,699.36x = 122,559.48 × 29,114.16
  4. Step 4: Simplify right side
    81,699.36x = 3,568,216,310.24
  5. Step 5: Solve for x
    x = 3,568,216,310.24/81,699.36
  6. Step 6: Final answer
    x = 43,674.96

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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.