Home / 45,418.40-68,127.60-34,359.20

Finding the Fourth Proportional to 45,418.40, 68,127.60 and 34,359.20

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Solution

The fourth proportional to 45,418.40, 68,127.60 and 34,359.20 is: 51,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,418.40 : 68,127.60 = 34,359.20 : x
  2. Step 2: Convert to fraction form
    45,418.40/68,127.60 = 34,359.20/x
  3. Step 3: Cross multiply
    45,418.40x = 68,127.60 × 34,359.20
  4. Step 4: Simplify right side
    45,418.40x = 2,340,809,833.92
  5. Step 5: Solve for x
    x = 2,340,809,833.92/45,418.40
  6. Step 6: Final answer
    x = 51,538.80

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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.