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Finding the Fourth Proportional to 57,004.50, 85,509.18 and 15,451.50

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Solution

The fourth proportional to 57,004.50, 85,509.18 and 15,451.50 is: 23,177.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,004.50 : 85,509.18 = 15,451.50 : x
  2. Step 2: Convert to fraction form
    57,004.50/85,509.18 = 15,451.50/x
  3. Step 3: Cross multiply
    57,004.50x = 85,509.18 × 15,451.50
  4. Step 4: Simplify right side
    57,004.50x = 1,321,245,094.77
  5. Step 5: Solve for x
    x = 1,321,245,094.77/57,004.50
  6. Step 6: Final answer
    x = 23,177.91

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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.