Home / 74,126.99-102,309.78-57,962.31

Finding the Fourth Proportional to 74,126.99, 102,309.78 and 57,962.31

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Solution

The fourth proportional to 74,126.99, 102,309.78 and 57,962.31 is: 79,999.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,126.99 : 102,309.78 = 57,962.31 : x
  2. Step 2: Convert to fraction form
    74,126.99/102,309.78 = 57,962.31/x
  3. Step 3: Cross multiply
    74,126.99x = 102,309.78 × 57,962.31
  4. Step 4: Simplify right side
    74,126.99x = 5,930,111,184.39
  5. Step 5: Solve for x
    x = 5,930,111,184.39/74,126.99
  6. Step 6: Final answer
    x = 79,999.36

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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.