Home / 74,390.45-102,676.68-42,577.80

Finding the Fourth Proportional to 74,390.45, 102,676.68 and 42,577.80

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Solution

The fourth proportional to 74,390.45, 102,676.68 and 42,577.80 is: 58,767.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,390.45 : 102,676.68 = 42,577.80 : x
  2. Step 2: Convert to fraction form
    74,390.45/102,676.68 = 42,577.80/x
  3. Step 3: Cross multiply
    74,390.45x = 102,676.68 × 42,577.80
  4. Step 4: Simplify right side
    74,390.45x = 4,371,747,145.70
  5. Step 5: Solve for x
    x = 4,371,747,145.70/74,390.45
  6. Step 6: Final answer
    x = 58,767.59

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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.