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Finding the Fourth Proportional to 71,735.37, 98,994.74 and 39,903.59

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Solution

The fourth proportional to 71,735.37, 98,994.74 and 39,903.59 is: 55,066.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,735.37 : 98,994.74 = 39,903.59 : x
  2. Step 2: Convert to fraction form
    71,735.37/98,994.74 = 39,903.59/x
  3. Step 3: Cross multiply
    71,735.37x = 98,994.74 × 39,903.59
  4. Step 4: Simplify right side
    71,735.37x = 3,950,244,822.62
  5. Step 5: Solve for x
    x = 3,950,244,822.62/71,735.37
  6. Step 6: Final answer
    x = 55,066.91

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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.