Home / 74,515.13-102,830.82-40,981.13

Finding the Fourth Proportional to 74,515.13, 102,830.82 and 40,981.13

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Solution

The fourth proportional to 74,515.13, 102,830.82 and 40,981.13 is: 56,553.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,515.13 : 102,830.82 = 40,981.13 : x
  2. Step 2: Convert to fraction form
    74,515.13/102,830.82 = 40,981.13/x
  3. Step 3: Cross multiply
    74,515.13x = 102,830.82 × 40,981.13
  4. Step 4: Simplify right side
    74,515.13x = 4,214,123,202.43
  5. Step 5: Solve for x
    x = 4,214,123,202.43/74,515.13
  6. Step 6: Final answer
    x = 56,553.93

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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.