Home / 86,249.27-129,309.21-58,090.30

Finding the Fourth Proportional to 86,249.27, 129,309.21 and 58,090.30

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Solution

The fourth proportional to 86,249.27, 129,309.21 and 58,090.30 is: 87,091.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,249.27 : 129,309.21 = 58,090.30 : x
  2. Step 2: Convert to fraction form
    86,249.27/129,309.21 = 58,090.30/x
  3. Step 3: Cross multiply
    86,249.27x = 129,309.21 × 58,090.30
  4. Step 4: Simplify right side
    86,249.27x = 7,511,610,478.39
  5. Step 5: Solve for x
    x = 7,511,610,478.39/86,249.27
  6. Step 6: Final answer
    x = 87,091.87

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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.