Home / 40,698.55-61,043.12-11,118.77

Finding the Fourth Proportional to 40,698.55, 61,043.12 and 11,118.77

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Solution

The fourth proportional to 40,698.55, 61,043.12 and 11,118.77 is: 16,676.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,698.55 : 61,043.12 = 11,118.77 : x
  2. Step 2: Convert to fraction form
    40,698.55/61,043.12 = 11,118.77/x
  3. Step 3: Cross multiply
    40,698.55x = 61,043.12 × 11,118.77
  4. Step 4: Simplify right side
    40,698.55x = 678,724,321.16
  5. Step 5: Solve for x
    x = 678,724,321.16/40,698.55
  6. Step 6: Final answer
    x = 16,676.87

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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.