Home / 79,429.04-109,612.20-43,621.36

Finding the Fourth Proportional to 79,429.04, 109,612.20 and 43,621.36

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Solution

The fourth proportional to 79,429.04, 109,612.20 and 43,621.36 is: 60,197.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,429.04 : 109,612.20 = 43,621.36 : x
  2. Step 2: Convert to fraction form
    79,429.04/109,612.20 = 43,621.36/x
  3. Step 3: Cross multiply
    79,429.04x = 109,612.20 × 43,621.36
  4. Step 4: Simplify right side
    79,429.04x = 4,781,433,236.59
  5. Step 5: Solve for x
    x = 4,781,433,236.59/79,429.04
  6. Step 6: Final answer
    x = 60,197.55

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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.