Home / 42,082.14-63,112.34-12,493.28

Finding the Fourth Proportional to 42,082.14, 63,112.34 and 12,493.28

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Solution

The fourth proportional to 42,082.14, 63,112.34 and 12,493.28 is: 18,736.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,082.14 : 63,112.34 = 12,493.28 : x
  2. Step 2: Convert to fraction form
    42,082.14/63,112.34 = 12,493.28/x
  3. Step 3: Cross multiply
    42,082.14x = 63,112.34 × 12,493.28
  4. Step 4: Simplify right side
    42,082.14x = 788,480,135.08
  5. Step 5: Solve for x
    x = 788,480,135.08/42,082.14
  6. Step 6: Final answer
    x = 18,736.69

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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.