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Finding the Fourth Proportional to 53,559.60, 80,425.80 and 40,426.80

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Solution

The fourth proportional to 53,559.60, 80,425.80 and 40,426.80 is: 60,705.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,559.60 : 80,425.80 = 40,426.80 : x
  2. Step 2: Convert to fraction form
    53,559.60/80,425.80 = 40,426.80/x
  3. Step 3: Cross multiply
    53,559.60x = 80,425.80 × 40,426.80
  4. Step 4: Simplify right side
    53,559.60x = 3,251,357,731.44
  5. Step 5: Solve for x
    x = 3,251,357,731.44/53,559.60
  6. Step 6: Final answer
    x = 60,705.41

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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.