Home / 99,771.30-149,526.99-40,537.72

Finding the Fourth Proportional to 99,771.30, 149,526.99 and 40,537.72

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Solution

The fourth proportional to 99,771.30, 149,526.99 and 40,537.72 is: 60,753.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,771.30 : 149,526.99 = 40,537.72 : x
  2. Step 2: Convert to fraction form
    99,771.30/149,526.99 = 40,537.72/x
  3. Step 3: Cross multiply
    99,771.30x = 149,526.99 × 40,537.72
  4. Step 4: Simplify right side
    99,771.30x = 6,061,483,253.06
  5. Step 5: Solve for x
    x = 6,061,483,253.06/99,771.30
  6. Step 6: Final answer
    x = 60,753.78

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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.