Home / 79,143.45-109,217.97-43,335.66

Finding the Fourth Proportional to 79,143.45, 109,217.97 and 43,335.66

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Solution

The fourth proportional to 79,143.45, 109,217.97 and 43,335.66 is: 59,803.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,143.45 : 109,217.97 = 43,335.66 : x
  2. Step 2: Convert to fraction form
    79,143.45/109,217.97 = 43,335.66/x
  3. Step 3: Cross multiply
    79,143.45x = 109,217.97 × 43,335.66
  4. Step 4: Simplify right side
    79,143.45x = 4,733,032,813.81
  5. Step 5: Solve for x
    x = 4,733,032,813.81/79,143.45
  6. Step 6: Final answer
    x = 59,803.22

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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.