Home / 69,301.60-103,775.28-38,102.56

Finding the Fourth Proportional to 69,301.60, 103,775.28 and 38,102.56

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Solution

The fourth proportional to 69,301.60, 103,775.28 and 38,102.56 is: 57,056.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,301.60 : 103,775.28 = 38,102.56 : x
  2. Step 2: Convert to fraction form
    69,301.60/103,775.28 = 38,102.56/x
  3. Step 3: Cross multiply
    69,301.60x = 103,775.28 × 38,102.56
  4. Step 4: Simplify right side
    69,301.60x = 3,954,103,832.72
  5. Step 5: Solve for x
    x = 3,954,103,832.72/69,301.60
  6. Step 6: Final answer
    x = 57,056.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.