Home / 74,916.29-103,379.91-40,917.89

Finding the Fourth Proportional to 74,916.29, 103,379.91 and 40,917.89

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Solution

The fourth proportional to 74,916.29, 103,379.91 and 40,917.89 is: 56,464.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,916.29 : 103,379.91 = 40,917.89 : x
  2. Step 2: Convert to fraction form
    74,916.29/103,379.91 = 40,917.89/x
  3. Step 3: Cross multiply
    74,916.29x = 103,379.91 × 40,917.89
  4. Step 4: Simplify right side
    74,916.29x = 4,230,087,785.59
  5. Step 5: Solve for x
    x = 4,230,087,785.59/74,916.29
  6. Step 6: Final answer
    x = 56,464.19

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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.