Home / 42,158.26-63,245.49-18,784.63

Finding the Fourth Proportional to 42,158.26, 63,245.49 and 18,784.63

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Solution

The fourth proportional to 42,158.26, 63,245.49 and 18,784.63 is: 28,180.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,158.26 : 63,245.49 = 18,784.63 : x
  2. Step 2: Convert to fraction form
    42,158.26/63,245.49 = 18,784.63/x
  3. Step 3: Cross multiply
    42,158.26x = 63,245.49 × 18,784.63
  4. Step 4: Simplify right side
    42,158.26x = 1,188,043,128.82
  5. Step 5: Solve for x
    x = 1,188,043,128.82/42,158.26
  6. Step 6: Final answer
    x = 28,180.55

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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.