Home / 81,890.43-112,999.64-46,092.75

Finding the Fourth Proportional to 81,890.43, 112,999.64 and 46,092.75

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Solution

The fourth proportional to 81,890.43, 112,999.64 and 46,092.75 is: 63,602.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,890.43 : 112,999.64 = 46,092.75 : x
  2. Step 2: Convert to fraction form
    81,890.43/112,999.64 = 46,092.75/x
  3. Step 3: Cross multiply
    81,890.43x = 112,999.64 × 46,092.75
  4. Step 4: Simplify right side
    81,890.43x = 5,208,463,926.15
  5. Step 5: Solve for x
    x = 5,208,463,926.15/81,890.43
  6. Step 6: Final answer
    x = 63,602.84

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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.