Home / 91,037.88-136,556.82-28,713.24

Finding the Fourth Proportional to 91,037.88, 136,556.82 and 28,713.24

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Solution

The fourth proportional to 91,037.88, 136,556.82 and 28,713.24 is: 43,069.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,037.88 : 136,556.82 = 28,713.24 : x
  2. Step 2: Convert to fraction form
    91,037.88/136,556.82 = 28,713.24/x
  3. Step 3: Cross multiply
    91,037.88x = 136,556.82 × 28,713.24
  4. Step 4: Simplify right side
    91,037.88x = 3,920,988,746.30
  5. Step 5: Solve for x
    x = 3,920,988,746.30/91,037.88
  6. Step 6: Final answer
    x = 43,069.86

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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.