Home / 79,146.36-109,217.16-43,336.80

Finding the Fourth Proportional to 79,146.36, 109,217.16 and 43,336.80

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Solution

The fourth proportional to 79,146.36, 109,217.16 and 43,336.80 is: 59,802.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,146.36 : 109,217.16 = 43,336.80 : x
  2. Step 2: Convert to fraction form
    79,146.36/109,217.16 = 43,336.80/x
  3. Step 3: Cross multiply
    79,146.36x = 109,217.16 × 43,336.80
  4. Step 4: Simplify right side
    79,146.36x = 4,733,122,219.49
  5. Step 5: Solve for x
    x = 4,733,122,219.49/79,146.36
  6. Step 6: Final answer
    x = 59,802.15

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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.