Home / 56,067.11-77,371.47-30,916.61

Finding the Fourth Proportional to 56,067.11, 77,371.47 and 30,916.61

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Solution

The fourth proportional to 56,067.11, 77,371.47 and 30,916.61 is: 42,664.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,067.11 : 77,371.47 = 30,916.61 : x
  2. Step 2: Convert to fraction form
    56,067.11/77,371.47 = 30,916.61/x
  3. Step 3: Cross multiply
    56,067.11x = 77,371.47 × 30,916.61
  4. Step 4: Simplify right side
    56,067.11x = 2,392,063,563.12
  5. Step 5: Solve for x
    x = 2,392,063,563.12/56,067.11
  6. Step 6: Final answer
    x = 42,664.29

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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.