Home / 81,636.18-122,337.43-46,503.24

Finding the Fourth Proportional to 81,636.18, 122,337.43 and 46,503.24

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Solution

The fourth proportional to 81,636.18, 122,337.43 and 46,503.24 is: 69,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,636.18 : 122,337.43 = 46,503.24 : x
  2. Step 2: Convert to fraction form
    81,636.18/122,337.43 = 46,503.24/x
  3. Step 3: Cross multiply
    81,636.18x = 122,337.43 × 46,503.24
  4. Step 4: Simplify right side
    81,636.18x = 5,689,086,868.27
  5. Step 5: Solve for x
    x = 5,689,086,868.27/81,636.18
  6. Step 6: Final answer
    x = 69,688.30

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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.