Home / 74,423.25-102,704.09-40,889.25

Finding the Fourth Proportional to 74,423.25, 102,704.09 and 40,889.25

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Solution

The fourth proportional to 74,423.25, 102,704.09 and 40,889.25 is: 56,427.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,423.25 : 102,704.09 = 40,889.25 : x
  2. Step 2: Convert to fraction form
    74,423.25/102,704.09 = 40,889.25/x
  3. Step 3: Cross multiply
    74,423.25x = 102,704.09 × 40,889.25
  4. Step 4: Simplify right side
    74,423.25x = 4,199,493,007.59
  5. Step 5: Solve for x
    x = 4,199,493,007.59/74,423.25
  6. Step 6: Final answer
    x = 56,427.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.