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Finding the Fourth Proportional to 57,741.70, 86,624.70 and 18,302.80

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Solution

The fourth proportional to 57,741.70, 86,624.70 and 18,302.80 is: 27,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,741.70 : 86,624.70 = 18,302.80 : x
  2. Step 2: Convert to fraction form
    57,741.70/86,624.70 = 18,302.80/x
  3. Step 3: Cross multiply
    57,741.70x = 86,624.70 × 18,302.80
  4. Step 4: Simplify right side
    57,741.70x = 1,585,474,559.16
  5. Step 5: Solve for x
    x = 1,585,474,559.16/57,741.70
  6. Step 6: Final answer
    x = 27,458.05

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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.