Home / 74,676.35-103,050.39-40,685.11

Finding the Fourth Proportional to 74,676.35, 103,050.39 and 40,685.11

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Solution

The fourth proportional to 74,676.35, 103,050.39 and 40,685.11 is: 56,143.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,676.35 : 103,050.39 = 40,685.11 : x
  2. Step 2: Convert to fraction form
    74,676.35/103,050.39 = 40,685.11/x
  3. Step 3: Cross multiply
    74,676.35x = 103,050.39 × 40,685.11
  4. Step 4: Simplify right side
    74,676.35x = 4,192,616,347.64
  5. Step 5: Solve for x
    x = 4,192,616,347.64/74,676.35
  6. Step 6: Final answer
    x = 56,143.83

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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.