Home / 67,868.58-101,836.82-30,455.40

Finding the Fourth Proportional to 67,868.58, 101,836.82 and 30,455.40

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Solution

The fourth proportional to 67,868.58, 101,836.82 and 30,455.40 is: 45,698.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,868.58 : 101,836.82 = 30,455.40 : x
  2. Step 2: Convert to fraction form
    67,868.58/101,836.82 = 30,455.40/x
  3. Step 3: Cross multiply
    67,868.58x = 101,836.82 × 30,455.40
  4. Step 4: Simplify right side
    67,868.58x = 3,101,480,935.55
  5. Step 5: Solve for x
    x = 3,101,480,935.55/67,868.58
  6. Step 6: Final answer
    x = 45,698.33

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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.