Home / 45,934.12-68,908.40-19,639

Finding the Fourth Proportional to 45,934.12, 68,908.40 and 19,639

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Solution

The fourth proportional to 45,934.12, 68,908.40 and 19,639 is: 29,461.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,934.12 : 68,908.40 = 19,639 : x
  2. Step 2: Convert to fraction form
    45,934.12/68,908.40 = 19,639/x
  3. Step 3: Cross multiply
    45,934.12x = 68,908.40 × 19,639
  4. Step 4: Simplify right side
    45,934.12x = 1,353,292,067.60
  5. Step 5: Solve for x
    x = 1,353,292,067.60/45,934.12
  6. Step 6: Final answer
    x = 29,461.59

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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.