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Finding the Fourth Proportional to 70,762.26, 97,648.29 and 38,930.34

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Solution

The fourth proportional to 70,762.26, 97,648.29 and 38,930.34 is: 53,721.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,762.26 : 97,648.29 = 38,930.34 : x
  2. Step 2: Convert to fraction form
    70,762.26/97,648.29 = 38,930.34/x
  3. Step 3: Cross multiply
    70,762.26x = 97,648.29 × 38,930.34
  4. Step 4: Simplify right side
    70,762.26x = 3,801,481,130.12
  5. Step 5: Solve for x
    x = 3,801,481,130.12/70,762.26
  6. Step 6: Final answer
    x = 53,721.87

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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.