Home / 74,278.31-111,134.50-65,322.54

Finding the Fourth Proportional to 74,278.31, 111,134.50 and 65,322.54

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Solution

The fourth proportional to 74,278.31, 111,134.50 and 65,322.54 is: 97,734.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,278.31 : 111,134.50 = 65,322.54 : x
  2. Step 2: Convert to fraction form
    74,278.31/111,134.50 = 65,322.54/x
  3. Step 3: Cross multiply
    74,278.31x = 111,134.50 × 65,322.54
  4. Step 4: Simplify right side
    74,278.31x = 7,259,587,658.32
  5. Step 5: Solve for x
    x = 7,259,587,658.32/74,278.31
  6. Step 6: Final answer
    x = 97,734.97

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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.