Home / 75,565.55-104,308.53-64,912.43

Finding the Fourth Proportional to 75,565.55, 104,308.53 and 64,912.43

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Solution

The fourth proportional to 75,565.55, 104,308.53 and 64,912.43 is: 89,603.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,565.55 : 104,308.53 = 64,912.43 : x
  2. Step 2: Convert to fraction form
    75,565.55/104,308.53 = 64,912.43/x
  3. Step 3: Cross multiply
    75,565.55x = 104,308.53 × 64,912.43
  4. Step 4: Simplify right side
    75,565.55x = 6,770,919,305.92
  5. Step 5: Solve for x
    x = 6,770,919,305.92/75,565.55
  6. Step 6: Final answer
    x = 89,603.26

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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.