Home / 86,241.01-129,362.09-30,080.91

Finding the Fourth Proportional to 86,241.01, 129,362.09 and 30,080.91

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Solution

The fourth proportional to 86,241.01, 129,362.09 and 30,080.91 is: 45,121.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,241.01 : 129,362.09 = 30,080.91 : x
  2. Step 2: Convert to fraction form
    86,241.01/129,362.09 = 30,080.91/x
  3. Step 3: Cross multiply
    86,241.01x = 129,362.09 × 30,080.91
  4. Step 4: Simplify right side
    86,241.01x = 3,891,329,236.30
  5. Step 5: Solve for x
    x = 3,891,329,236.30/86,241.01
  6. Step 6: Final answer
    x = 45,121.56

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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.