Home / 71,738.12-98,995.86-39,905.96

Finding the Fourth Proportional to 71,738.12, 98,995.86 and 39,905.96

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Solution

The fourth proportional to 71,738.12, 98,995.86 and 39,905.96 is: 55,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,738.12 : 98,995.86 = 39,905.96 : x
  2. Step 2: Convert to fraction form
    71,738.12/98,995.86 = 39,905.96/x
  3. Step 3: Cross multiply
    71,738.12x = 98,995.86 × 39,905.96
  4. Step 4: Simplify right side
    71,738.12x = 3,950,524,829.33
  5. Step 5: Solve for x
    x = 3,950,524,829.33/71,738.12
  6. Step 6: Final answer
    x = 55,068.70

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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.