Home / 74,198.10-102,428.84-42,360.85

Finding the Fourth Proportional to 74,198.10, 102,428.84 and 42,360.85

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Solution

The fourth proportional to 74,198.10, 102,428.84 and 42,360.85 is: 58,478.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,198.10 : 102,428.84 = 42,360.85 : x
  2. Step 2: Convert to fraction form
    74,198.10/102,428.84 = 42,360.85/x
  3. Step 3: Cross multiply
    74,198.10x = 102,428.84 × 42,360.85
  4. Step 4: Simplify right side
    74,198.10x = 4,338,972,726.91
  5. Step 5: Solve for x
    x = 4,338,972,726.91/74,198.10
  6. Step 6: Final answer
    x = 58,478.22

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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.