Home / 71,001.63-97,982.91-39,170.25

Finding the Fourth Proportional to 71,001.63, 97,982.91 and 39,170.25

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Solution

The fourth proportional to 71,001.63, 97,982.91 and 39,170.25 is: 54,055.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,001.63 : 97,982.91 = 39,170.25 : x
  2. Step 2: Convert to fraction form
    71,001.63/97,982.91 = 39,170.25/x
  3. Step 3: Cross multiply
    71,001.63x = 97,982.91 × 39,170.25
  4. Step 4: Simplify right side
    71,001.63x = 3,838,015,080.43
  5. Step 5: Solve for x
    x = 3,838,015,080.43/71,001.63
  6. Step 6: Final answer
    x = 54,055.31

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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.