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Finding the Fourth Proportional to 70,563.25, 97,377.09 and 38,731.47

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Solution

The fourth proportional to 70,563.25, 97,377.09 and 38,731.47 is: 53,449.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,563.25 : 97,377.09 = 38,731.47 : x
  2. Step 2: Convert to fraction form
    70,563.25/97,377.09 = 38,731.47/x
  3. Step 3: Cross multiply
    70,563.25x = 97,377.09 × 38,731.47
  4. Step 4: Simplify right side
    70,563.25x = 3,771,557,329.62
  5. Step 5: Solve for x
    x = 3,771,557,329.62/70,563.25
  6. Step 6: Final answer
    x = 53,449.31

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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.