Home / 42,115.18-63,169.12-17,157.86

Finding the Fourth Proportional to 42,115.18, 63,169.12 and 17,157.86

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Solution

The fourth proportional to 42,115.18, 63,169.12 and 17,157.86 is: 25,735.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,115.18 : 63,169.12 = 17,157.86 : x
  2. Step 2: Convert to fraction form
    42,115.18/63,169.12 = 17,157.86/x
  3. Step 3: Cross multiply
    42,115.18x = 63,169.12 × 17,157.86
  4. Step 4: Simplify right side
    42,115.18x = 1,083,846,831.49
  5. Step 5: Solve for x
    x = 1,083,846,831.49/42,115.18
  6. Step 6: Final answer
    x = 25,735.30

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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.