Home / 65,983.20-98,845.20-61,317.60

Finding the Fourth Proportional to 65,983.20, 98,845.20 and 61,317.60

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Solution

The fourth proportional to 65,983.20, 98,845.20 and 61,317.60 is: 91,855.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,983.20 : 98,845.20 = 61,317.60 : x
  2. Step 2: Convert to fraction form
    65,983.20/98,845.20 = 61,317.60/x
  3. Step 3: Cross multiply
    65,983.20x = 98,845.20 × 61,317.60
  4. Step 4: Simplify right side
    65,983.20x = 6,060,950,435.52
  5. Step 5: Solve for x
    x = 6,060,950,435.52/65,983.20
  6. Step 6: Final answer
    x = 91,855.96

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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.