Home / 42,540.40-63,810.66-11,375.64

Finding the Fourth Proportional to 42,540.40, 63,810.66 and 11,375.64

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Solution

The fourth proportional to 42,540.40, 63,810.66 and 11,375.64 is: 17,063.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,540.40 : 63,810.66 = 11,375.64 : x
  2. Step 2: Convert to fraction form
    42,540.40/63,810.66 = 11,375.64/x
  3. Step 3: Cross multiply
    42,540.40x = 63,810.66 × 11,375.64
  4. Step 4: Simplify right side
    42,540.40x = 725,887,096.32
  5. Step 5: Solve for x
    x = 725,887,096.32/42,540.40
  6. Step 6: Final answer
    x = 17,063.48

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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.