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Finding the Fourth Proportional to 65,899.80, 98,856.90 and 63,826.20

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Solution

The fourth proportional to 65,899.80, 98,856.90 and 63,826.20 is: 95,746.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,899.80 : 98,856.90 = 63,826.20 : x
  2. Step 2: Convert to fraction form
    65,899.80/98,856.90 = 63,826.20/x
  3. Step 3: Cross multiply
    65,899.80x = 98,856.90 × 63,826.20
  4. Step 4: Simplify right side
    65,899.80x = 6,309,660,270.78
  5. Step 5: Solve for x
    x = 6,309,660,270.78/65,899.80
  6. Step 6: Final answer
    x = 95,746.27

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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.