Home / 65,543.40-98,315.10-26,128.80

Finding the Fourth Proportional to 65,543.40, 98,315.10 and 26,128.80

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Solution

The fourth proportional to 65,543.40, 98,315.10 and 26,128.80 is: 39,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,543.40 : 98,315.10 = 26,128.80 : x
  2. Step 2: Convert to fraction form
    65,543.40/98,315.10 = 26,128.80/x
  3. Step 3: Cross multiply
    65,543.40x = 98,315.10 × 26,128.80
  4. Step 4: Simplify right side
    65,543.40x = 2,568,855,584.88
  5. Step 5: Solve for x
    x = 2,568,855,584.88/65,543.40
  6. Step 6: Final answer
    x = 39,193.20

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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.