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Finding the Fourth Proportional to 57,225.57, 85,787.76 and 21,662.19

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Solution

The fourth proportional to 57,225.57, 85,787.76 and 21,662.19 is: 32,474.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,225.57 : 85,787.76 = 21,662.19 : x
  2. Step 2: Convert to fraction form
    57,225.57/85,787.76 = 21,662.19/x
  3. Step 3: Cross multiply
    57,225.57x = 85,787.76 × 21,662.19
  4. Step 4: Simplify right side
    57,225.57x = 1,858,350,756.79
  5. Step 5: Solve for x
    x = 1,858,350,756.79/57,225.57
  6. Step 6: Final answer
    x = 32,474.13

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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.