Home / 90,714.29-125,186.40-49,879.13

Finding the Fourth Proportional to 90,714.29, 125,186.40 and 49,879.13

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Solution

The fourth proportional to 90,714.29, 125,186.40 and 49,879.13 is: 68,833.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,714.29 : 125,186.40 = 49,879.13 : x
  2. Step 2: Convert to fraction form
    90,714.29/125,186.40 = 49,879.13/x
  3. Step 3: Cross multiply
    90,714.29x = 125,186.40 × 49,879.13
  4. Step 4: Simplify right side
    90,714.29x = 6,244,188,093.90
  5. Step 5: Solve for x
    x = 6,244,188,093.90/90,714.29
  6. Step 6: Final answer
    x = 68,833.57

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1.5x scale

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.