Home / 95,128.85-131,278.78-57,395.81

Finding the Fourth Proportional to 95,128.85, 131,278.78 and 57,395.81

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Solution

The fourth proportional to 95,128.85, 131,278.78 and 57,395.81 is: 79,206.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,128.85 : 131,278.78 = 57,395.81 : x
  2. Step 2: Convert to fraction form
    95,128.85/131,278.78 = 57,395.81/x
  3. Step 3: Cross multiply
    95,128.85x = 131,278.78 × 57,395.81
  4. Step 4: Simplify right side
    95,128.85x = 7,534,852,313.85
  5. Step 5: Solve for x
    x = 7,534,852,313.85/95,128.85
  6. Step 6: Final answer
    x = 79,206.80

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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.