Home / 55,175.06-82,804.17-40,421.78

Finding the Fourth Proportional to 55,175.06, 82,804.17 and 40,421.78

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Solution

The fourth proportional to 55,175.06, 82,804.17 and 40,421.78 is: 60,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,175.06 : 82,804.17 = 40,421.78 : x
  2. Step 2: Convert to fraction form
    55,175.06/82,804.17 = 40,421.78/x
  3. Step 3: Cross multiply
    55,175.06x = 82,804.17 × 40,421.78
  4. Step 4: Simplify right side
    55,175.06x = 3,347,091,942.82
  5. Step 5: Solve for x
    x = 3,347,091,942.82/55,175.06
  6. Step 6: Final answer
    x = 60,663.13

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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.