Home / 57,869.76-86,715.32-39,076.14

Finding the Fourth Proportional to 57,869.76, 86,715.32 and 39,076.14

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Solution

The fourth proportional to 57,869.76, 86,715.32 and 39,076.14 is: 58,553.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,869.76 : 86,715.32 = 39,076.14 : x
  2. Step 2: Convert to fraction form
    57,869.76/86,715.32 = 39,076.14/x
  3. Step 3: Cross multiply
    57,869.76x = 86,715.32 × 39,076.14
  4. Step 4: Simplify right side
    57,869.76x = 3,388,499,984.46
  5. Step 5: Solve for x
    x = 3,388,499,984.46/57,869.76
  6. Step 6: Final answer
    x = 58,553.90

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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.