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Finding the Fourth Proportional to 73,909.56, 101,995.02 and 40,375.80

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Solution

The fourth proportional to 73,909.56, 101,995.02 and 40,375.80 is: 55,718.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,909.56 : 101,995.02 = 40,375.80 : x
  2. Step 2: Convert to fraction form
    73,909.56/101,995.02 = 40,375.80/x
  3. Step 3: Cross multiply
    73,909.56x = 101,995.02 × 40,375.80
  4. Step 4: Simplify right side
    73,909.56x = 4,118,130,528.52
  5. Step 5: Solve for x
    x = 4,118,130,528.52/73,909.56
  6. Step 6: Final answer
    x = 55,718.51

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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.