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Finding the Fourth Proportional to 57,200.90, 85,801.37 and 15,647.90

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Solution

The fourth proportional to 57,200.90, 85,801.37 and 15,647.90 is: 23,471.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,200.90 : 85,801.37 = 15,647.90 : x
  2. Step 2: Convert to fraction form
    57,200.90/85,801.37 = 15,647.90/x
  3. Step 3: Cross multiply
    57,200.90x = 85,801.37 × 15,647.90
  4. Step 4: Simplify right side
    57,200.90x = 1,342,610,750.38
  5. Step 5: Solve for x
    x = 1,342,610,750.38/57,200.90
  6. Step 6: Final answer
    x = 23,471.85

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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.