Home / 65,521.92-98,286.24-18,775.20

Finding the Fourth Proportional to 65,521.92, 98,286.24 and 18,775.20

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Solution

The fourth proportional to 65,521.92, 98,286.24 and 18,775.20 is: 28,163.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,521.92 : 98,286.24 = 18,775.20 : x
  2. Step 2: Convert to fraction form
    65,521.92/98,286.24 = 18,775.20/x
  3. Step 3: Cross multiply
    65,521.92x = 98,286.24 × 18,775.20
  4. Step 4: Simplify right side
    65,521.92x = 1,845,343,813.25
  5. Step 5: Solve for x
    x = 1,845,343,813.25/65,521.92
  6. Step 6: Final answer
    x = 28,163.76

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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.