Home / 65,559.78-98,350.61-21,181.30

Finding the Fourth Proportional to 65,559.78, 98,350.61 and 21,181.30

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Solution

The fourth proportional to 65,559.78, 98,350.61 and 21,181.30 is: 31,775.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,559.78 : 98,350.61 = 21,181.30 : x
  2. Step 2: Convert to fraction form
    65,559.78/98,350.61 = 21,181.30/x
  3. Step 3: Cross multiply
    65,559.78x = 98,350.61 × 21,181.30
  4. Step 4: Simplify right side
    65,559.78x = 2,083,193,423.81
  5. Step 5: Solve for x
    x = 2,083,193,423.81/65,559.78
  6. Step 6: Final answer
    x = 31,775.48

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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.