Home / 74,502.57-102,814.83-40,511.28

Finding the Fourth Proportional to 74,502.57, 102,814.83 and 40,511.28

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Solution

The fourth proportional to 74,502.57, 102,814.83 and 40,511.28 is: 55,906.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,502.57 : 102,814.83 = 40,511.28 : x
  2. Step 2: Convert to fraction form
    74,502.57/102,814.83 = 40,511.28/x
  3. Step 3: Cross multiply
    74,502.57x = 102,814.83 × 40,511.28
  4. Step 4: Simplify right side
    74,502.57x = 4,165,160,366.28
  5. Step 5: Solve for x
    x = 4,165,160,366.28/74,502.57
  6. Step 6: Final answer
    x = 55,906.26

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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.