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Finding the Fourth Proportional to 73,909.02, 101,994.41 and 39,917.51

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Solution

The fourth proportional to 73,909.02, 101,994.41 and 39,917.51 is: 55,086.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,909.02 : 101,994.41 = 39,917.51 : x
  2. Step 2: Convert to fraction form
    73,909.02/101,994.41 = 39,917.51/x
  3. Step 3: Cross multiply
    73,909.02x = 101,994.41 × 39,917.51
  4. Step 4: Simplify right side
    73,909.02x = 4,071,362,171.56
  5. Step 5: Solve for x
    x = 4,071,362,171.56/73,909.02
  6. Step 6: Final answer
    x = 55,086.13

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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.