Home / 74,572.64-102,911.28-41,039.36

Finding the Fourth Proportional to 74,572.64, 102,911.28 and 41,039.36

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Solution

The fourth proportional to 74,572.64, 102,911.28 and 41,039.36 is: 56,634.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,572.64 : 102,911.28 = 41,039.36 : x
  2. Step 2: Convert to fraction form
    74,572.64/102,911.28 = 41,039.36/x
  3. Step 3: Cross multiply
    74,572.64x = 102,911.28 × 41,039.36
  4. Step 4: Simplify right side
    74,572.64x = 4,223,413,067.98
  5. Step 5: Solve for x
    x = 4,223,413,067.98/74,572.64
  6. Step 6: Final answer
    x = 56,634.89

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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.