Home / 83,926.20-125,846.10-31,308.60

Finding the Fourth Proportional to 83,926.20, 125,846.10 and 31,308.60

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Solution

The fourth proportional to 83,926.20, 125,846.10 and 31,308.60 is: 46,946.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,926.20 : 125,846.10 = 31,308.60 : x
  2. Step 2: Convert to fraction form
    83,926.20/125,846.10 = 31,308.60/x
  3. Step 3: Cross multiply
    83,926.20x = 125,846.10 × 31,308.60
  4. Step 4: Simplify right side
    83,926.20x = 3,940,065,206.46
  5. Step 5: Solve for x
    x = 3,940,065,206.46/83,926.20
  6. Step 6: Final answer
    x = 46,946.78

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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.