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Finding the Fourth Proportional to 65,607.60, 98,265.60 and 50,768.40

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Solution

The fourth proportional to 65,607.60, 98,265.60 and 50,768.40 is: 76,039.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,607.60 : 98,265.60 = 50,768.40 : x
  2. Step 2: Convert to fraction form
    65,607.60/98,265.60 = 50,768.40/x
  3. Step 3: Cross multiply
    65,607.60x = 98,265.60 × 50,768.40
  4. Step 4: Simplify right side
    65,607.60x = 4,988,787,287.04
  5. Step 5: Solve for x
    x = 4,988,787,287.04/65,607.60
  6. Step 6: Final answer
    x = 76,039.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.