Home / 75,163.10-103,699.33-42,874.52

Finding the Fourth Proportional to 75,163.10, 103,699.33 and 42,874.52

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Solution

The fourth proportional to 75,163.10, 103,699.33 and 42,874.52 is: 59,152.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,163.10 : 103,699.33 = 42,874.52 : x
  2. Step 2: Convert to fraction form
    75,163.10/103,699.33 = 42,874.52/x
  3. Step 3: Cross multiply
    75,163.10x = 103,699.33 × 42,874.52
  4. Step 4: Simplify right side
    75,163.10x = 4,446,058,998.07
  5. Step 5: Solve for x
    x = 4,446,058,998.07/75,163.10
  6. Step 6: Final answer
    x = 59,152.15

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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.