Home / 81,083.63-121,594.46-38,951.70

Finding the Fourth Proportional to 81,083.63, 121,594.46 and 38,951.70

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Solution

The fourth proportional to 81,083.63, 121,594.46 and 38,951.70 is: 58,412.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,083.63 : 121,594.46 = 38,951.70 : x
  2. Step 2: Convert to fraction form
    81,083.63/121,594.46 = 38,951.70/x
  3. Step 3: Cross multiply
    81,083.63x = 121,594.46 × 38,951.70
  4. Step 4: Simplify right side
    81,083.63x = 4,736,310,732.82
  5. Step 5: Solve for x
    x = 4,736,310,732.82/81,083.63
  6. Step 6: Final answer
    x = 58,412.67

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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.