Home / 42,079.20-63,113.94-12,493.95

Finding the Fourth Proportional to 42,079.20, 63,113.94 and 12,493.95

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Solution

The fourth proportional to 42,079.20, 63,113.94 and 12,493.95 is: 18,739.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,079.20 : 63,113.94 = 12,493.95 : x
  2. Step 2: Convert to fraction form
    42,079.20/63,113.94 = 12,493.95/x
  3. Step 3: Cross multiply
    42,079.20x = 63,113.94 × 12,493.95
  4. Step 4: Simplify right side
    42,079.20x = 788,542,410.66
  5. Step 5: Solve for x
    x = 788,542,410.66/42,079.20
  6. Step 6: Final answer
    x = 18,739.48

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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.