Home / 83,815.46-125,683.72-30,469.92

Finding the Fourth Proportional to 83,815.46, 125,683.72 and 30,469.92

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Solution

The fourth proportional to 83,815.46, 125,683.72 and 30,469.92 is: 45,690.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,815.46 : 125,683.72 = 30,469.92 : x
  2. Step 2: Convert to fraction form
    83,815.46/125,683.72 = 30,469.92/x
  3. Step 3: Cross multiply
    83,815.46x = 125,683.72 × 30,469.92
  4. Step 4: Simplify right side
    83,815.46x = 3,829,572,893.70
  5. Step 5: Solve for x
    x = 3,829,572,893.70/83,815.46
  6. Step 6: Final answer
    x = 45,690.53

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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.