Home / 40,669.09-61,005.81-12,608.53

Finding the Fourth Proportional to 40,669.09, 61,005.81 and 12,608.53

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Solution

The fourth proportional to 40,669.09, 61,005.81 and 12,608.53 is: 18,913.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,669.09 : 61,005.81 = 12,608.53 : x
  2. Step 2: Convert to fraction form
    40,669.09/61,005.81 = 12,608.53/x
  3. Step 3: Cross multiply
    40,669.09x = 61,005.81 × 12,608.53
  4. Step 4: Simplify right side
    40,669.09x = 769,193,585.56
  5. Step 5: Solve for x
    x = 769,193,585.56/40,669.09
  6. Step 6: Final answer
    x = 18,913.47

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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.