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Finding the Fourth Proportional to 70,982.70, 97,959.02 and 39,153.62

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Solution

The fourth proportional to 70,982.70, 97,959.02 and 39,153.62 is: 54,033.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,982.70 : 97,959.02 = 39,153.62 : x
  2. Step 2: Convert to fraction form
    70,982.70/97,959.02 = 39,153.62/x
  3. Step 3: Cross multiply
    70,982.70x = 97,959.02 × 39,153.62
  4. Step 4: Simplify right side
    70,982.70x = 3,835,449,559.09
  5. Step 5: Solve for x
    x = 3,835,449,559.09/70,982.70
  6. Step 6: Final answer
    x = 54,033.58

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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.