Home / 90,814.88-125,335.60-55,004

Finding the Fourth Proportional to 90,814.88, 125,335.60 and 55,004

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Solution

The fourth proportional to 90,814.88, 125,335.60 and 55,004 is: 75,912.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,814.88 : 125,335.60 = 55,004 : x
  2. Step 2: Convert to fraction form
    90,814.88/125,335.60 = 55,004/x
  3. Step 3: Cross multiply
    90,814.88x = 125,335.60 × 55,004
  4. Step 4: Simplify right side
    90,814.88x = 6,893,959,342.40
  5. Step 5: Solve for x
    x = 6,893,959,342.40/90,814.88
  6. Step 6: Final answer
    x = 75,912.22

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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.