Home / 81,752.08-112,820.84-45,942.80

Finding the Fourth Proportional to 81,752.08, 112,820.84 and 45,942.80

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Solution

The fourth proportional to 81,752.08, 112,820.84 and 45,942.80 is: 63,402.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,752.08 : 112,820.84 = 45,942.80 : x
  2. Step 2: Convert to fraction form
    81,752.08/112,820.84 = 45,942.80/x
  3. Step 3: Cross multiply
    81,752.08x = 112,820.84 × 45,942.80
  4. Step 4: Simplify right side
    81,752.08x = 5,183,305,287.95
  5. Step 5: Solve for x
    x = 5,183,305,287.95/81,752.08
  6. Step 6: Final answer
    x = 63,402.73

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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.