Home / 74,135.07-111,185.88-34,115.63

Finding the Fourth Proportional to 74,135.07, 111,185.88 and 34,115.63

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Solution

The fourth proportional to 74,135.07, 111,185.88 and 34,115.63 is: 51,165.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,135.07 : 111,185.88 = 34,115.63 : x
  2. Step 2: Convert to fraction form
    74,135.07/111,185.88 = 34,115.63/x
  3. Step 3: Cross multiply
    74,135.07x = 111,185.88 × 34,115.63
  4. Step 4: Simplify right side
    74,135.07x = 3,793,175,787.38
  5. Step 5: Solve for x
    x = 3,793,175,787.38/74,135.07
  6. Step 6: Final answer
    x = 51,165.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.