Home / 71,234.12-106,811.69-29,143.74

Finding the Fourth Proportional to 71,234.12, 106,811.69 and 29,143.74

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Solution

The fourth proportional to 71,234.12, 106,811.69 and 29,143.74 is: 43,699.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,234.12 : 106,811.69 = 29,143.74 : x
  2. Step 2: Convert to fraction form
    71,234.12/106,811.69 = 29,143.74/x
  3. Step 3: Cross multiply
    71,234.12x = 106,811.69 × 29,143.74
  4. Step 4: Simplify right side
    71,234.12x = 3,112,892,122.32
  5. Step 5: Solve for x
    x = 3,112,892,122.32/71,234.12
  6. Step 6: Final answer
    x = 43,699.45

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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.