Home / 70,760.35-97,649.27-38,928.56

Finding the Fourth Proportional to 70,760.35, 97,649.27 and 38,928.56

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Solution

The fourth proportional to 70,760.35, 97,649.27 and 38,928.56 is: 53,721.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,760.35 : 97,649.27 = 38,928.56 : x
  2. Step 2: Convert to fraction form
    70,760.35/97,649.27 = 38,928.56/x
  3. Step 3: Cross multiply
    70,760.35x = 97,649.27 × 38,928.56
  4. Step 4: Simplify right side
    70,760.35x = 3,801,345,466.15
  5. Step 5: Solve for x
    x = 3,801,345,466.15/70,760.35
  6. Step 6: Final answer
    x = 53,721.41

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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.