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Finding the Fourth Proportional to 73,753.50, 101,780.37 and 40,219.50

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Solution

The fourth proportional to 73,753.50, 101,780.37 and 40,219.50 is: 55,503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,753.50 : 101,780.37 = 40,219.50 : x
  2. Step 2: Convert to fraction form
    73,753.50/101,780.37 = 40,219.50/x
  3. Step 3: Cross multiply
    73,753.50x = 101,780.37 × 40,219.50
  4. Step 4: Simplify right side
    73,753.50x = 4,093,555,591.22
  5. Step 5: Solve for x
    x = 4,093,555,591.22/73,753.50
  6. Step 6: Final answer
    x = 55,503.20

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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.