Home / 77,632.55-116,447.92-54,742.13

Finding the Fourth Proportional to 77,632.55, 116,447.92 and 54,742.13

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Solution

The fourth proportional to 77,632.55, 116,447.92 and 54,742.13 is: 82,112.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,632.55 : 116,447.92 = 54,742.13 : x
  2. Step 2: Convert to fraction form
    77,632.55/116,447.92 = 54,742.13/x
  3. Step 3: Cross multiply
    77,632.55x = 116,447.92 × 54,742.13
  4. Step 4: Simplify right side
    77,632.55x = 6,374,607,174.87
  5. Step 5: Solve for x
    x = 6,374,607,174.87/77,632.55
  6. Step 6: Final answer
    x = 82,112.56

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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.