Home / 73,418.40-109,981.80-43,748.10

Finding the Fourth Proportional to 73,418.40, 109,981.80 and 43,748.10

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Solution

The fourth proportional to 73,418.40, 109,981.80 and 43,748.10 is: 65,535.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,418.40 : 109,981.80 = 43,748.10 : x
  2. Step 2: Convert to fraction form
    73,418.40/109,981.80 = 43,748.10/x
  3. Step 3: Cross multiply
    73,418.40x = 109,981.80 × 43,748.10
  4. Step 4: Simplify right side
    73,418.40x = 4,811,494,784.58
  5. Step 5: Solve for x
    x = 4,811,494,784.58/73,418.40
  6. Step 6: Final answer
    x = 65,535.27

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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.