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Finding the Fourth Proportional to 57,264.40, 85,784.72 and 39,453.04

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Solution

The fourth proportional to 57,264.40, 85,784.72 and 39,453.04 is: 59,102.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,264.40 : 85,784.72 = 39,453.04 : x
  2. Step 2: Convert to fraction form
    57,264.40/85,784.72 = 39,453.04/x
  3. Step 3: Cross multiply
    57,264.40x = 85,784.72 × 39,453.04
  4. Step 4: Simplify right side
    57,264.40x = 3,384,467,989.55
  5. Step 5: Solve for x
    x = 3,384,467,989.55/57,264.40
  6. Step 6: Final answer
    x = 59,102.48

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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.