Home / 81,338.99-112,247.78-45,537.39

Finding the Fourth Proportional to 81,338.99, 112,247.78 and 45,537.39

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Solution

The fourth proportional to 81,338.99, 112,247.78 and 45,537.39 is: 62,841.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,338.99 : 112,247.78 = 45,537.39 : x
  2. Step 2: Convert to fraction form
    81,338.99/112,247.78 = 45,537.39/x
  3. Step 3: Cross multiply
    81,338.99x = 112,247.78 × 45,537.39
  4. Step 4: Simplify right side
    81,338.99x = 5,111,470,706.81
  5. Step 5: Solve for x
    x = 5,111,470,706.81/81,338.99
  6. Step 6: Final answer
    x = 62,841.58

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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.