Home / 81,829.42-112,792.94-61,099.39

Finding the Fourth Proportional to 81,829.42, 112,792.94 and 61,099.39

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Solution

The fourth proportional to 81,829.42, 112,792.94 and 61,099.39 is: 84,218.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,829.42 : 112,792.94 = 61,099.39 : x
  2. Step 2: Convert to fraction form
    81,829.42/112,792.94 = 61,099.39/x
  3. Step 3: Cross multiply
    81,829.42x = 112,792.94 × 61,099.39
  4. Step 4: Simplify right side
    81,829.42x = 6,891,579,894.92
  5. Step 5: Solve for x
    x = 6,891,579,894.92/81,829.42
  6. Step 6: Final answer
    x = 84,218.86

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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.