Home / 71,001.71-97,982.69-39,170.60

Finding the Fourth Proportional to 71,001.71, 97,982.69 and 39,170.60

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Solution

The fourth proportional to 71,001.71, 97,982.69 and 39,170.60 is: 54,055.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,001.71 : 97,982.69 = 39,170.60 : x
  2. Step 2: Convert to fraction form
    71,001.71/97,982.69 = 39,170.60/x
  3. Step 3: Cross multiply
    71,001.71x = 97,982.69 × 39,170.60
  4. Step 4: Simplify right side
    71,001.71x = 3,838,040,071.15
  5. Step 5: Solve for x
    x = 3,838,040,071.15/71,001.71
  6. Step 6: Final answer
    x = 54,055.60

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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.