Home / 90,029.61-124,234.47-49,742.96

Finding the Fourth Proportional to 90,029.61, 124,234.47 and 49,742.96

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Solution

The fourth proportional to 90,029.61, 124,234.47 and 49,742.96 is: 68,641.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,029.61 : 124,234.47 = 49,742.96 : x
  2. Step 2: Convert to fraction form
    90,029.61/124,234.47 = 49,742.96/x
  3. Step 3: Cross multiply
    90,029.61x = 124,234.47 × 49,742.96
  4. Step 4: Simplify right side
    90,029.61x = 6,179,789,650.66
  5. Step 5: Solve for x
    x = 6,179,789,650.66/90,029.61
  6. Step 6: Final answer
    x = 68,641.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.