Home / 90,852.88-136,301.24-28,523.36

Finding the Fourth Proportional to 90,852.88, 136,301.24 and 28,523.36

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Solution

The fourth proportional to 90,852.88, 136,301.24 and 28,523.36 is: 42,791.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,852.88 : 136,301.24 = 28,523.36 : x
  2. Step 2: Convert to fraction form
    90,852.88/136,301.24 = 28,523.36/x
  3. Step 3: Cross multiply
    90,852.88x = 136,301.24 × 28,523.36
  4. Step 4: Simplify right side
    90,852.88x = 3,887,769,336.97
  5. Step 5: Solve for x
    x = 3,887,769,336.97/90,852.88
  6. Step 6: Final answer
    x = 42,791.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.