Home / 83,886.37-125,790.67-31,281.73

Finding the Fourth Proportional to 83,886.37, 125,790.67 and 31,281.73

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Solution

The fourth proportional to 83,886.37, 125,790.67 and 31,281.73 is: 46,908.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,886.37 : 125,790.67 = 31,281.73 : x
  2. Step 2: Convert to fraction form
    83,886.37/125,790.67 = 31,281.73/x
  3. Step 3: Cross multiply
    83,886.37x = 125,790.67 × 31,281.73
  4. Step 4: Simplify right side
    83,886.37x = 3,934,949,775.46
  5. Step 5: Solve for x
    x = 3,934,949,775.46/83,886.37
  6. Step 6: Final answer
    x = 46,908.09

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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.