Home / 79,371.18-109,528.79-43,561.80

Finding the Fourth Proportional to 79,371.18, 109,528.79 and 43,561.80

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Solution

The fourth proportional to 79,371.18, 109,528.79 and 43,561.80 is: 60,113.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,371.18 : 109,528.79 = 43,561.80 : x
  2. Step 2: Convert to fraction form
    79,371.18/109,528.79 = 43,561.80/x
  3. Step 3: Cross multiply
    79,371.18x = 109,528.79 × 43,561.80
  4. Step 4: Simplify right side
    79,371.18x = 4,771,271,244.22
  5. Step 5: Solve for x
    x = 4,771,271,244.22/79,371.18
  6. Step 6: Final answer
    x = 60,113.40

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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.