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Finding the Fourth Proportional to 79,570.74, 109,805.10 and 43,760.64

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Solution

The fourth proportional to 79,570.74, 109,805.10 and 43,760.64 is: 60,388.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,570.74 : 109,805.10 = 43,760.64 : x
  2. Step 2: Convert to fraction form
    79,570.74/109,805.10 = 43,760.64/x
  3. Step 3: Cross multiply
    79,570.74x = 109,805.10 × 43,760.64
  4. Step 4: Simplify right side
    79,570.74x = 4,805,141,451.26
  5. Step 5: Solve for x
    x = 4,805,141,451.26/79,570.74
  6. Step 6: Final answer
    x = 60,388.30

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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.