Home / 65,561.50-98,339.72-18,814.38

Finding the Fourth Proportional to 65,561.50, 98,339.72 and 18,814.38

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Solution

The fourth proportional to 65,561.50, 98,339.72 and 18,814.38 is: 28,220.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,561.50 : 98,339.72 = 18,814.38 : x
  2. Step 2: Convert to fraction form
    65,561.50/98,339.72 = 18,814.38/x
  3. Step 3: Cross multiply
    65,561.50x = 98,339.72 × 18,814.38
  4. Step 4: Simplify right side
    65,561.50x = 1,850,200,398.33
  5. Step 5: Solve for x
    x = 1,850,200,398.33/65,561.50
  6. Step 6: Final answer
    x = 28,220.84

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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.