Home / 74,132.33-102,302.43-40,140.83

Finding the Fourth Proportional to 74,132.33, 102,302.43 and 40,140.83

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Solution

The fourth proportional to 74,132.33, 102,302.43 and 40,140.83 is: 55,394.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,132.33 : 102,302.43 = 40,140.83 : x
  2. Step 2: Convert to fraction form
    74,132.33/102,302.43 = 40,140.83/x
  3. Step 3: Cross multiply
    74,132.33x = 102,302.43 × 40,140.83
  4. Step 4: Simplify right side
    74,132.33x = 4,106,503,939.70
  5. Step 5: Solve for x
    x = 4,106,503,939.70/74,132.33
  6. Step 6: Final answer
    x = 55,394.24

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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.