Home / 71,649.12-107,427.60-34,188.96

Finding the Fourth Proportional to 71,649.12, 107,427.60 and 34,188.96

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Solution

The fourth proportional to 71,649.12, 107,427.60 and 34,188.96 is: 51,261.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,649.12 : 107,427.60 = 34,188.96 : x
  2. Step 2: Convert to fraction form
    71,649.12/107,427.60 = 34,188.96/x
  3. Step 3: Cross multiply
    71,649.12x = 107,427.60 × 34,188.96
  4. Step 4: Simplify right side
    71,649.12x = 3,672,837,919.30
  5. Step 5: Solve for x
    x = 3,672,837,919.30/71,649.12
  6. Step 6: Final answer
    x = 51,261.45

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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.