Home / 74,058.75-102,198.54-42,237.90

Finding the Fourth Proportional to 74,058.75, 102,198.54 and 42,237.90

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Solution

The fourth proportional to 74,058.75, 102,198.54 and 42,237.90 is: 58,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,058.75 : 102,198.54 = 42,237.90 : x
  2. Step 2: Convert to fraction form
    74,058.75/102,198.54 = 42,237.90/x
  3. Step 3: Cross multiply
    74,058.75x = 102,198.54 × 42,237.90
  4. Step 4: Simplify right side
    74,058.75x = 4,316,651,201.67
  5. Step 5: Solve for x
    x = 4,316,651,201.67/74,058.75
  6. Step 6: Final answer
    x = 58,286.85

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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.