Home / 57,704.10-86,572.35-28,122.90

Finding the Fourth Proportional to 57,704.10, 86,572.35 and 28,122.90

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Solution

The fourth proportional to 57,704.10, 86,572.35 and 28,122.90 is: 42,192.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,704.10 : 86,572.35 = 28,122.90 : x
  2. Step 2: Convert to fraction form
    57,704.10/86,572.35 = 28,122.90/x
  3. Step 3: Cross multiply
    57,704.10x = 86,572.35 × 28,122.90
  4. Step 4: Simplify right side
    57,704.10x = 2,434,665,541.82
  5. Step 5: Solve for x
    x = 2,434,665,541.82/57,704.10
  6. Step 6: Final answer
    x = 42,192.25

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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.