Home / 65,432.97-98,147.39-18,685.80

Finding the Fourth Proportional to 65,432.97, 98,147.39 and 18,685.80

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Solution

The fourth proportional to 65,432.97, 98,147.39 and 18,685.80 is: 28,028.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,432.97 : 98,147.39 = 18,685.80 : x
  2. Step 2: Convert to fraction form
    65,432.97/98,147.39 = 18,685.80/x
  3. Step 3: Cross multiply
    65,432.97x = 98,147.39 × 18,685.80
  4. Step 4: Simplify right side
    65,432.97x = 1,833,962,406.63
  5. Step 5: Solve for x
    x = 1,833,962,406.63/65,432.97
  6. Step 6: Final answer
    x = 28,028.11

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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.