Home / 73,139.89-109,704.36-26,392.76

Finding the Fourth Proportional to 73,139.89, 109,704.36 and 26,392.76

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Solution

The fourth proportional to 73,139.89, 109,704.36 and 26,392.76 is: 39,587.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,139.89 : 109,704.36 = 26,392.76 : x
  2. Step 2: Convert to fraction form
    73,139.89/109,704.36 = 26,392.76/x
  3. Step 3: Cross multiply
    73,139.89x = 109,704.36 × 26,392.76
  4. Step 4: Simplify right side
    73,139.89x = 2,895,401,423.36
  5. Step 5: Solve for x
    x = 2,895,401,423.36/73,139.89
  6. Step 6: Final answer
    x = 39,587.17

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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.