Home / 56,661.77-78,193.32-31,511.27

Finding the Fourth Proportional to 56,661.77, 78,193.32 and 31,511.27

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Solution

The fourth proportional to 56,661.77, 78,193.32 and 31,511.27 is: 43,485.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,661.77 : 78,193.32 = 31,511.27 : x
  2. Step 2: Convert to fraction form
    56,661.77/78,193.32 = 31,511.27/x
  3. Step 3: Cross multiply
    56,661.77x = 78,193.32 × 31,511.27
  4. Step 4: Simplify right side
    56,661.77x = 2,463,970,270.19
  5. Step 5: Solve for x
    x = 2,463,970,270.19/56,661.77
  6. Step 6: Final answer
    x = 43,485.59

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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.