Home / 45,534.80-68,302.20-43,785.20

Finding the Fourth Proportional to 45,534.80, 68,302.20 and 43,785.20

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Solution

The fourth proportional to 45,534.80, 68,302.20 and 43,785.20 is: 65,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,534.80 : 68,302.20 = 43,785.20 : x
  2. Step 2: Convert to fraction form
    45,534.80/68,302.20 = 43,785.20/x
  3. Step 3: Cross multiply
    45,534.80x = 68,302.20 × 43,785.20
  4. Step 4: Simplify right side
    45,534.80x = 2,990,625,487.44
  5. Step 5: Solve for x
    x = 2,990,625,487.44/45,534.80
  6. Step 6: Final answer
    x = 65,677.80

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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.