Home / 79,649.12-109,913.22-43,839.16

Finding the Fourth Proportional to 79,649.12, 109,913.22 and 43,839.16

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Solution

The fourth proportional to 79,649.12, 109,913.22 and 43,839.16 is: 60,496.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,649.12 : 109,913.22 = 43,839.16 : x
  2. Step 2: Convert to fraction form
    79,649.12/109,913.22 = 43,839.16/x
  3. Step 3: Cross multiply
    79,649.12x = 109,913.22 × 43,839.16
  4. Step 4: Simplify right side
    79,649.12x = 4,818,502,962.91
  5. Step 5: Solve for x
    x = 4,818,502,962.91/79,649.12
  6. Step 6: Final answer
    x = 60,496.62

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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.