Home / 83,856.89-125,785.35-57,481.67

Finding the Fourth Proportional to 83,856.89, 125,785.35 and 57,481.67

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Solution

The fourth proportional to 83,856.89, 125,785.35 and 57,481.67 is: 86,222.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,856.89 : 125,785.35 = 57,481.67 : x
  2. Step 2: Convert to fraction form
    83,856.89/125,785.35 = 57,481.67/x
  3. Step 3: Cross multiply
    83,856.89x = 125,785.35 × 57,481.67
  4. Step 4: Simplify right side
    83,856.89x = 7,230,352,294.00
  5. Step 5: Solve for x
    x = 7,230,352,294.00/83,856.89
  6. Step 6: Final answer
    x = 86,222.52

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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.