Home / 79,142.92-109,217.26-43,335.20

Finding the Fourth Proportional to 79,142.92, 109,217.26 and 43,335.20

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Solution

The fourth proportional to 79,142.92, 109,217.26 and 43,335.20 is: 59,802.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,142.92 : 109,217.26 = 43,335.20 : x
  2. Step 2: Convert to fraction form
    79,142.92/109,217.26 = 43,335.20/x
  3. Step 3: Cross multiply
    79,142.92x = 109,217.26 × 43,335.20
  4. Step 4: Simplify right side
    79,142.92x = 4,732,952,132.76
  5. Step 5: Solve for x
    x = 4,732,952,132.76/79,142.92
  6. Step 6: Final answer
    x = 59,802.59

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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.