Home / 79,451.45-109,650.60-45,453.18

Finding the Fourth Proportional to 79,451.45, 109,650.60 and 45,453.18

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Solution

The fourth proportional to 79,451.45, 109,650.60 and 45,453.18 is: 62,729.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,451.45 : 109,650.60 = 45,453.18 : x
  2. Step 2: Convert to fraction form
    79,451.45/109,650.60 = 45,453.18/x
  3. Step 3: Cross multiply
    79,451.45x = 109,650.60 × 45,453.18
  4. Step 4: Simplify right side
    79,451.45x = 4,983,968,458.91
  5. Step 5: Solve for x
    x = 4,983,968,458.91/79,451.45
  6. Step 6: Final answer
    x = 62,729.74

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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.