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Finding the Fourth Proportional to 57,477, 86,132.04 and 40,870.44

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Solution

The fourth proportional to 57,477, 86,132.04 and 40,870.44 is: 61,246.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,477 : 86,132.04 = 40,870.44 : x
  2. Step 2: Convert to fraction form
    57,477/86,132.04 = 40,870.44/x
  3. Step 3: Cross multiply
    57,477x = 86,132.04 × 40,870.44
  4. Step 4: Simplify right side
    57,477x = 3,520,254,372.90
  5. Step 5: Solve for x
    x = 3,520,254,372.90/57,477
  6. Step 6: Final answer
    x = 61,246.31

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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.