Home / 343,739.12-515,549.20-91,023.24

Finding the Fourth Proportional to 343,739.12, 515,549.20 and 91,023.24

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Solution

The fourth proportional to 343,739.12, 515,549.20 and 91,023.24 is: 136,519.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,739.12 : 515,549.20 = 91,023.24 : x
  2. Step 2: Convert to fraction form
    343,739.12/515,549.20 = 91,023.24/x
  3. Step 3: Cross multiply
    343,739.12x = 515,549.20 × 91,023.24
  4. Step 4: Simplify right side
    343,739.12x = 46,926,958,563.41
  5. Step 5: Solve for x
    x = 46,926,958,563.41/343,739.12
  6. Step 6: Final answer
    x = 136,519.11

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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.