Home / 71,005.82-97,985.50-39,174.64

Finding the Fourth Proportional to 71,005.82, 97,985.50 and 39,174.64

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Solution

The fourth proportional to 71,005.82, 97,985.50 and 39,174.64 is: 54,059.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,005.82 : 97,985.50 = 39,174.64 : x
  2. Step 2: Convert to fraction form
    71,005.82/97,985.50 = 39,174.64/x
  3. Step 3: Cross multiply
    71,005.82x = 97,985.50 × 39,174.64
  4. Step 4: Simplify right side
    71,005.82x = 3,838,546,344.82
  5. Step 5: Solve for x
    x = 3,838,546,344.82/71,005.82
  6. Step 6: Final answer
    x = 54,059.61

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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.