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Finding the Fourth Proportional to 53,425.20, 80,040.60 and 43,510.80

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Solution

The fourth proportional to 53,425.20, 80,040.60 and 43,510.80 is: 65,187.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,425.20 : 80,040.60 = 43,510.80 : x
  2. Step 2: Convert to fraction form
    53,425.20/80,040.60 = 43,510.80/x
  3. Step 3: Cross multiply
    53,425.20x = 80,040.60 × 43,510.80
  4. Step 4: Simplify right side
    53,425.20x = 3,482,630,538.48
  5. Step 5: Solve for x
    x = 3,482,630,538.48/53,425.20
  6. Step 6: Final answer
    x = 65,187.04

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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.