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Finding the Fourth Proportional to 71,339.80, 106,932.90 and 26,949.40

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Solution

The fourth proportional to 71,339.80, 106,932.90 and 26,949.40 is: 40,395.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,339.80 : 106,932.90 = 26,949.40 : x
  2. Step 2: Convert to fraction form
    71,339.80/106,932.90 = 26,949.40/x
  3. Step 3: Cross multiply
    71,339.80x = 106,932.90 × 26,949.40
  4. Step 4: Simplify right side
    71,339.80x = 2,881,777,495.26
  5. Step 5: Solve for x
    x = 2,881,777,495.26/71,339.80
  6. Step 6: Final answer
    x = 40,395.09

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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.