Home / 83,883.31-125,786.08-31,278.67

Finding the Fourth Proportional to 83,883.31, 125,786.08 and 31,278.67

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Solution

The fourth proportional to 83,883.31, 125,786.08 and 31,278.67 is: 46,903.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,883.31 : 125,786.08 = 31,278.67 : x
  2. Step 2: Convert to fraction form
    83,883.31/125,786.08 = 31,278.67/x
  3. Step 3: Cross multiply
    83,883.31x = 125,786.08 × 31,278.67
  4. Step 4: Simplify right side
    83,883.31x = 3,934,421,286.91
  5. Step 5: Solve for x
    x = 3,934,421,286.91/83,883.31
  6. Step 6: Final answer
    x = 46,903.51

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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.