Home / 40,690.37-61,045.07-12,608.96

Finding the Fourth Proportional to 40,690.37, 61,045.07 and 12,608.96

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Solution

The fourth proportional to 40,690.37, 61,045.07 and 12,608.96 is: 18,916.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,690.37 : 61,045.07 = 12,608.96 : x
  2. Step 2: Convert to fraction form
    40,690.37/61,045.07 = 12,608.96/x
  3. Step 3: Cross multiply
    40,690.37x = 61,045.07 × 12,608.96
  4. Step 4: Simplify right side
    40,690.37x = 769,714,477.56
  5. Step 5: Solve for x
    x = 769,714,477.56/40,690.37
  6. Step 6: Final answer
    x = 18,916.38

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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.