Home / 72,286.20-99,754.80-40,461.24

Finding the Fourth Proportional to 72,286.20, 99,754.80 and 40,461.24

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Solution

The fourth proportional to 72,286.20, 99,754.80 and 40,461.24 is: 55,836.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,286.20 : 99,754.80 = 40,461.24 : x
  2. Step 2: Convert to fraction form
    72,286.20/99,754.80 = 40,461.24/x
  3. Step 3: Cross multiply
    72,286.20x = 99,754.80 × 40,461.24
  4. Step 4: Simplify right side
    72,286.20x = 4,036,202,903.95
  5. Step 5: Solve for x
    x = 4,036,202,903.95/72,286.20
  6. Step 6: Final answer
    x = 55,836.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.