Home / 81,636.43-122,337.81-46,503.49

Finding the Fourth Proportional to 81,636.43, 122,337.81 and 46,503.49

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Solution

The fourth proportional to 81,636.43, 122,337.81 and 46,503.49 is: 69,688.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,636.43 : 122,337.81 = 46,503.49 : x
  2. Step 2: Convert to fraction form
    81,636.43/122,337.81 = 46,503.49/x
  3. Step 3: Cross multiply
    81,636.43x = 122,337.81 × 46,503.49
  4. Step 4: Simplify right side
    81,636.43x = 5,689,135,123.96
  5. Step 5: Solve for x
    x = 5,689,135,123.96/81,636.43
  6. Step 6: Final answer
    x = 69,688.68

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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.