Home / 81,626.91-112,636.48-45,820.86

Finding the Fourth Proportional to 81,626.91, 112,636.48 and 45,820.86

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Solution

The fourth proportional to 81,626.91, 112,636.48 and 45,820.86 is: 63,227.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,626.91 : 112,636.48 = 45,820.86 : x
  2. Step 2: Convert to fraction form
    81,626.91/112,636.48 = 45,820.86/x
  3. Step 3: Cross multiply
    81,626.91x = 112,636.48 × 45,820.86
  4. Step 4: Simplify right side
    81,626.91x = 5,161,100,380.97
  5. Step 5: Solve for x
    x = 5,161,100,380.97/81,626.91
  6. Step 6: Final answer
    x = 63,227.93

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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.