Home / 99,607.72-149,453.58-40,428.04

Finding the Fourth Proportional to 99,607.72, 149,453.58 and 40,428.04

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Solution

The fourth proportional to 99,607.72, 149,453.58 and 40,428.04 is: 60,659.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,607.72 : 149,453.58 = 40,428.04 : x
  2. Step 2: Convert to fraction form
    99,607.72/149,453.58 = 40,428.04/x
  3. Step 3: Cross multiply
    99,607.72x = 149,453.58 × 40,428.04
  4. Step 4: Simplify right side
    99,607.72x = 6,042,115,310.38
  5. Step 5: Solve for x
    x = 6,042,115,310.38/99,607.72
  6. Step 6: Final answer
    x = 60,659.11

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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.