Home / 99,618.68-149,451.38-39,650.79

Finding the Fourth Proportional to 99,618.68, 149,451.38 and 39,650.79

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Solution

The fourth proportional to 99,618.68, 149,451.38 and 39,650.79 is: 59,485.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,618.68 : 149,451.38 = 39,650.79 : x
  2. Step 2: Convert to fraction form
    99,618.68/149,451.38 = 39,650.79/x
  3. Step 3: Cross multiply
    99,618.68x = 149,451.38 × 39,650.79
  4. Step 4: Simplify right side
    99,618.68x = 5,925,865,382.72
  5. Step 5: Solve for x
    x = 5,925,865,382.72/99,618.68
  6. Step 6: Final answer
    x = 59,485.48

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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.