Home / 71,018.82-98,006.25-39,188.64

Finding the Fourth Proportional to 71,018.82, 98,006.25 and 39,188.64

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Solution

The fourth proportional to 71,018.82, 98,006.25 and 39,188.64 is: 54,080.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,018.82 : 98,006.25 = 39,188.64 : x
  2. Step 2: Convert to fraction form
    71,018.82/98,006.25 = 39,188.64/x
  3. Step 3: Cross multiply
    71,018.82x = 98,006.25 × 39,188.64
  4. Step 4: Simplify right side
    71,018.82x = 3,840,731,649
  5. Step 5: Solve for x
    x = 3,840,731,649/71,018.82
  6. Step 6: Final answer
    x = 54,080.48

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1.5x scale

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.