Home / 42,125.78-63,188.64-10,961.03

Finding the Fourth Proportional to 42,125.78, 63,188.64 and 10,961.03

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Solution

The fourth proportional to 42,125.78, 63,188.64 and 10,961.03 is: 16,441.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,125.78 : 63,188.64 = 10,961.03 : x
  2. Step 2: Convert to fraction form
    42,125.78/63,188.64 = 10,961.03/x
  3. Step 3: Cross multiply
    42,125.78x = 63,188.64 × 10,961.03
  4. Step 4: Simplify right side
    42,125.78x = 692,612,578.70
  5. Step 5: Solve for x
    x = 692,612,578.70/42,125.78
  6. Step 6: Final answer
    x = 16,441.54

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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.