Home / 52,291.11-78,353.64-31,181.30

Finding the Fourth Proportional to 52,291.11, 78,353.64 and 31,181.30

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Solution

The fourth proportional to 52,291.11, 78,353.64 and 31,181.30 is: 46,722.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,291.11 : 78,353.64 = 31,181.30 : x
  2. Step 2: Convert to fraction form
    52,291.11/78,353.64 = 31,181.30/x
  3. Step 3: Cross multiply
    52,291.11x = 78,353.64 × 31,181.30
  4. Step 4: Simplify right side
    52,291.11x = 2,443,167,963.16
  5. Step 5: Solve for x
    x = 2,443,167,963.16/52,291.11
  6. Step 6: Final answer
    x = 46,722.43

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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.