Home / 53,255.20-79,785.60-43,340.80

Finding the Fourth Proportional to 53,255.20, 79,785.60 and 43,340.80

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Solution

The fourth proportional to 53,255.20, 79,785.60 and 43,340.80 is: 64,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,255.20 : 79,785.60 = 43,340.80 : x
  2. Step 2: Convert to fraction form
    53,255.20/79,785.60 = 43,340.80/x
  3. Step 3: Cross multiply
    53,255.20x = 79,785.60 × 43,340.80
  4. Step 4: Simplify right side
    53,255.20x = 3,457,971,732.48
  5. Step 5: Solve for x
    x = 3,457,971,732.48/53,255.20
  6. Step 6: Final answer
    x = 64,932.10

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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.