Home / 95,409.51-131,649.77-55,128.61

Finding the Fourth Proportional to 95,409.51, 131,649.77 and 55,128.61

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Solution

The fourth proportional to 95,409.51, 131,649.77 and 55,128.61 is: 76,068.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,409.51 : 131,649.77 = 55,128.61 : x
  2. Step 2: Convert to fraction form
    95,409.51/131,649.77 = 55,128.61/x
  3. Step 3: Cross multiply
    95,409.51x = 131,649.77 × 55,128.61
  4. Step 4: Simplify right side
    95,409.51x = 7,257,668,826.92
  5. Step 5: Solve for x
    x = 7,257,668,826.92/95,409.51
  6. Step 6: Final answer
    x = 76,068.61

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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.