Home / 65,689.96-98,540.37-28,250.92

Finding the Fourth Proportional to 65,689.96, 98,540.37 and 28,250.92

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Solution

The fourth proportional to 65,689.96, 98,540.37 and 28,250.92 is: 42,378.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,689.96 : 98,540.37 = 28,250.92 : x
  2. Step 2: Convert to fraction form
    65,689.96/98,540.37 = 28,250.92/x
  3. Step 3: Cross multiply
    65,689.96x = 98,540.37 × 28,250.92
  4. Step 4: Simplify right side
    65,689.96x = 2,783,856,109.64
  5. Step 5: Solve for x
    x = 2,783,856,109.64/65,689.96
  6. Step 6: Final answer
    x = 42,378.72

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1.5x scale

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.