Home / 79,312.32-109,447.20-43,495.68

Finding the Fourth Proportional to 79,312.32, 109,447.20 and 43,495.68

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Solution

The fourth proportional to 79,312.32, 109,447.20 and 43,495.68 is: 60,021.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,312.32 : 109,447.20 = 43,495.68 : x
  2. Step 2: Convert to fraction form
    79,312.32/109,447.20 = 43,495.68/x
  3. Step 3: Cross multiply
    79,312.32x = 109,447.20 × 43,495.68
  4. Step 4: Simplify right side
    79,312.32x = 4,760,480,388.10
  5. Step 5: Solve for x
    x = 4,760,480,388.10/79,312.32
  6. Step 6: Final answer
    x = 60,021.95

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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.