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Finding the Fourth Proportional to 73,481.42, 101,403.88 and 39,947.42

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Solution

The fourth proportional to 73,481.42, 101,403.88 and 39,947.42 is: 55,127.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,481.42 : 101,403.88 = 39,947.42 : x
  2. Step 2: Convert to fraction form
    73,481.42/101,403.88 = 39,947.42/x
  3. Step 3: Cross multiply
    73,481.42x = 101,403.88 × 39,947.42
  4. Step 4: Simplify right side
    73,481.42x = 4,050,822,777.10
  5. Step 5: Solve for x
    x = 4,050,822,777.10/73,481.42
  6. Step 6: Final answer
    x = 55,127.17

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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.