Home / 71,214.48-106,828.94-18,624.40

Finding the Fourth Proportional to 71,214.48, 106,828.94 and 18,624.40

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Solution

The fourth proportional to 71,214.48, 106,828.94 and 18,624.40 is: 27,938.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,214.48 : 106,828.94 = 18,624.40 : x
  2. Step 2: Convert to fraction form
    71,214.48/106,828.94 = 18,624.40/x
  3. Step 3: Cross multiply
    71,214.48x = 106,828.94 × 18,624.40
  4. Step 4: Simplify right side
    71,214.48x = 1,989,624,910.14
  5. Step 5: Solve for x
    x = 1,989,624,910.14/71,214.48
  6. Step 6: Final answer
    x = 27,938.49

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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.