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Finding the Fourth Proportional to 79,570.43, 109,805.01 and 43,760.45

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Solution

The fourth proportional to 79,570.43, 109,805.01 and 43,760.45 is: 60,388.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,570.43 : 109,805.01 = 43,760.45 : x
  2. Step 2: Convert to fraction form
    79,570.43/109,805.01 = 43,760.45/x
  3. Step 3: Cross multiply
    79,570.43x = 109,805.01 × 43,760.45
  4. Step 4: Simplify right side
    79,570.43x = 4,805,116,100.83
  5. Step 5: Solve for x
    x = 4,805,116,100.83/79,570.43
  6. Step 6: Final answer
    x = 60,388.22

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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.