Home / 65,920.22-90,969.18-35,704.80

Finding the Fourth Proportional to 65,920.22, 90,969.18 and 35,704.80

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Solution

The fourth proportional to 65,920.22, 90,969.18 and 35,704.80 is: 49,272.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,920.22 : 90,969.18 = 35,704.80 : x
  2. Step 2: Convert to fraction form
    65,920.22/90,969.18 = 35,704.80/x
  3. Step 3: Cross multiply
    65,920.22x = 90,969.18 × 35,704.80
  4. Step 4: Simplify right side
    65,920.22x = 3,248,036,378.06
  5. Step 5: Solve for x
    x = 3,248,036,378.06/65,920.22
  6. Step 6: Final answer
    x = 49,272.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.