Home / 99,499.23-149,310.04-39,517.21

Finding the Fourth Proportional to 99,499.23, 149,310.04 and 39,517.21

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Solution

The fourth proportional to 99,499.23, 149,310.04 and 39,517.21 is: 59,300.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,499.23 : 149,310.04 = 39,517.21 : x
  2. Step 2: Convert to fraction form
    99,499.23/149,310.04 = 39,517.21/x
  3. Step 3: Cross multiply
    99,499.23x = 149,310.04 × 39,517.21
  4. Step 4: Simplify right side
    99,499.23x = 5,900,316,102.98
  5. Step 5: Solve for x
    x = 5,900,316,102.98/99,499.23
  6. Step 6: Final answer
    x = 59,300.12

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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.