Home / 65,404.50-98,107.70-18,657.38

Finding the Fourth Proportional to 65,404.50, 98,107.70 and 18,657.38

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Solution

The fourth proportional to 65,404.50, 98,107.70 and 18,657.38 is: 27,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,404.50 : 98,107.70 = 18,657.38 : x
  2. Step 2: Convert to fraction form
    65,404.50/98,107.70 = 18,657.38/x
  3. Step 3: Cross multiply
    65,404.50x = 98,107.70 × 18,657.38
  4. Step 4: Simplify right side
    65,404.50x = 1,830,432,056.00
  5. Step 5: Solve for x
    x = 1,830,432,056.00/65,404.50
  6. Step 6: Final answer
    x = 27,986.33

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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.