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Finding the Fourth Proportional to 65,980.60, 91,051.50 and 35,764.60

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Solution

The fourth proportional to 65,980.60, 91,051.50 and 35,764.60 is: 49,354.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,980.60 : 91,051.50 = 35,764.60 : x
  2. Step 2: Convert to fraction form
    65,980.60/91,051.50 = 35,764.60/x
  3. Step 3: Cross multiply
    65,980.60x = 91,051.50 × 35,764.60
  4. Step 4: Simplify right side
    65,980.60x = 3,256,420,476.90
  5. Step 5: Solve for x
    x = 3,256,420,476.90/65,980.60
  6. Step 6: Final answer
    x = 49,354.21

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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.