Home / 75,156.12-112,755.78-35,658.90

Finding the Fourth Proportional to 75,156.12, 112,755.78 and 35,658.90

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Solution

The fourth proportional to 75,156.12, 112,755.78 and 35,658.90 is: 53,498.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,156.12 : 112,755.78 = 35,658.90 : x
  2. Step 2: Convert to fraction form
    75,156.12/112,755.78 = 35,658.90/x
  3. Step 3: Cross multiply
    75,156.12x = 112,755.78 × 35,658.90
  4. Step 4: Simplify right side
    75,156.12x = 4,020,747,083.44
  5. Step 5: Solve for x
    x = 4,020,747,083.44/75,156.12
  6. Step 6: Final answer
    x = 53,498.60

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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.