Home / 65,830.27-98,800.70-28,418.60

Finding the Fourth Proportional to 65,830.27, 98,800.70 and 28,418.60

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Solution

The fourth proportional to 65,830.27, 98,800.70 and 28,418.60 is: 42,651.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,830.27 : 98,800.70 = 28,418.60 : x
  2. Step 2: Convert to fraction form
    65,830.27/98,800.70 = 28,418.60/x
  3. Step 3: Cross multiply
    65,830.27x = 98,800.70 × 28,418.60
  4. Step 4: Simplify right side
    65,830.27x = 2,807,777,573.02
  5. Step 5: Solve for x
    x = 2,807,777,573.02/65,830.27
  6. Step 6: Final answer
    x = 42,651.77

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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.