Home / 65,623.40-98,435.10-54,542.60

Finding the Fourth Proportional to 65,623.40, 98,435.10 and 54,542.60

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Solution

The fourth proportional to 65,623.40, 98,435.10 and 54,542.60 is: 81,813.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,623.40 : 98,435.10 = 54,542.60 : x
  2. Step 2: Convert to fraction form
    65,623.40/98,435.10 = 54,542.60/x
  3. Step 3: Cross multiply
    65,623.40x = 98,435.10 × 54,542.60
  4. Step 4: Simplify right side
    65,623.40x = 5,368,906,285.26
  5. Step 5: Solve for x
    x = 5,368,906,285.26/65,623.40
  6. Step 6: Final answer
    x = 81,813.90

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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.