Home / 73,872.49-102,632.28-72,986.76

Finding the Fourth Proportional to 73,872.49, 102,632.28 and 72,986.76

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Solution

The fourth proportional to 73,872.49, 102,632.28 and 72,986.76 is: 101,401.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,872.49 : 102,632.28 = 72,986.76 : x
  2. Step 2: Convert to fraction form
    73,872.49/102,632.28 = 72,986.76/x
  3. Step 3: Cross multiply
    73,872.49x = 102,632.28 × 72,986.76
  4. Step 4: Simplify right side
    73,872.49x = 7,490,796,984.22
  5. Step 5: Solve for x
    x = 7,490,796,984.22/73,872.49
  6. Step 6: Final answer
    x = 101,401.71

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.