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Finding the Fourth Proportional to 73,491.60, 101,419.16 and 39,958.32

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Solution

The fourth proportional to 73,491.60, 101,419.16 and 39,958.32 is: 55,142.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,491.60 : 101,419.16 = 39,958.32 : x
  2. Step 2: Convert to fraction form
    73,491.60/101,419.16 = 39,958.32/x
  3. Step 3: Cross multiply
    73,491.60x = 101,419.16 × 39,958.32
  4. Step 4: Simplify right side
    73,491.60x = 4,052,539,249.41
  5. Step 5: Solve for x
    x = 4,052,539,249.41/73,491.60
  6. Step 6: Final answer
    x = 55,142.89

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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.