Home / 74,315.07-102,553.14-40,323.61

Finding the Fourth Proportional to 74,315.07, 102,553.14 and 40,323.61

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Solution

The fourth proportional to 74,315.07, 102,553.14 and 40,323.61 is: 55,645.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,315.07 : 102,553.14 = 40,323.61 : x
  2. Step 2: Convert to fraction form
    74,315.07/102,553.14 = 40,323.61/x
  3. Step 3: Cross multiply
    74,315.07x = 102,553.14 × 40,323.61
  4. Step 4: Simplify right side
    74,315.07x = 4,135,312,821.64
  5. Step 5: Solve for x
    x = 4,135,312,821.64/74,315.07
  6. Step 6: Final answer
    x = 55,645.68

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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.