Home / 74,428.92-102,682.82-42,580.76

Finding the Fourth Proportional to 74,428.92, 102,682.82 and 42,580.76

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Solution

The fourth proportional to 74,428.92, 102,682.82 and 42,580.76 is: 58,744.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,428.92 : 102,682.82 = 42,580.76 : x
  2. Step 2: Convert to fraction form
    74,428.92/102,682.82 = 42,580.76/x
  3. Step 3: Cross multiply
    74,428.92x = 102,682.82 × 42,580.76
  4. Step 4: Simplify right side
    74,428.92x = 4,372,312,514.54
  5. Step 5: Solve for x
    x = 4,372,312,514.54/74,428.92
  6. Step 6: Final answer
    x = 58,744.81

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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.