Home / 40,697.78-61,046.06-11,115.53

Finding the Fourth Proportional to 40,697.78, 61,046.06 and 11,115.53

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Solution

The fourth proportional to 40,697.78, 61,046.06 and 11,115.53 is: 16,673.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,697.78 : 61,046.06 = 11,115.53 : x
  2. Step 2: Convert to fraction form
    40,697.78/61,046.06 = 11,115.53/x
  3. Step 3: Cross multiply
    40,697.78x = 61,046.06 × 11,115.53
  4. Step 4: Simplify right side
    40,697.78x = 678,559,179.43
  5. Step 5: Solve for x
    x = 678,559,179.43/40,697.78
  6. Step 6: Final answer
    x = 16,673.13

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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.