Home / 90,138.96-124,381.17-49,852.94

Finding the Fourth Proportional to 90,138.96, 124,381.17 and 49,852.94

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Solution

The fourth proportional to 90,138.96, 124,381.17 and 49,852.94 is: 68,791.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,138.96 : 124,381.17 = 49,852.94 : x
  2. Step 2: Convert to fraction form
    90,138.96/124,381.17 = 49,852.94/x
  3. Step 3: Cross multiply
    90,138.96x = 124,381.17 × 49,852.94
  4. Step 4: Simplify right side
    90,138.96x = 6,200,766,383.23
  5. Step 5: Solve for x
    x = 6,200,766,383.23/90,138.96
  6. Step 6: Final answer
    x = 68,791.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.